Uses of Class
java.lang.Class

Packages that useClass

Package

Description

Contains all of the classes for creating user interfaces and for painting graphics and images.

java.awt.datatransfer

Provides interfaces and classes for transferring data between and within applications.

java.awt.dnd

Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.

java.awt.image.renderable

Provides classes and interfaces for producing rendering-independent images.

java.beans

Contains classes related to developingbeans -- components based on the JavaBeans architecture.

java.beans.beancontext

Provides classes and interfaces relating to bean context.

java.io

Provides for system input and output through data streams, serialization and the file system.

java.lang

Provides classes that are fundamental to the design of the Java programming language.

java.lang.annotation

Provides library support for the Java programming language annotation facility.

java.lang.classfile

Provides classfile parsing, generation, and transformation library.

java.lang.classfile.constantpool

Provides interfaces describing classfile constant pool entries for thejava.lang.classfile^PREVIEW library.

java.lang.constant

Classes and interfaces to representnominal descriptors for run-time entities such as classes or method handles, and classfile entities such as constant pool entries orinvokedynamic call sites.

java.lang.foreign

Provides low-level access to memory and functions outside the Java runtime.

java.lang.instrument

Provides services that allow Java programming language agents to instrument programs running on the Java Virtual Machine (JVM).

java.lang.invoke

Thejava.lang.invoke package provides low-level primitives for interacting with the Java Virtual Machine.

java.lang.management

Provides the management interfaces for monitoring and management of the Java virtual machine and other components in the Java runtime.

java.lang.reflect

Provides classes and interfaces for obtaining reflective information about classes and objects.

java.lang.runtime

Thejava.lang.runtime package provides low-level runtime support for the Java language.

java.net

Provides the classes for implementing networking applications.

java.nio.file

Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.

java.nio.file.spi

Service-provider classes for thejava.nio.file package.

java.rmi.server

Provides classes and interfaces for supporting the server side of RMI.

java.security

Provides the classes and interfaces for the security framework.

java.sql

Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java programming language.

java.util

Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.

java.util.concurrent.atomic

A small toolkit of classes that support lock-free thread-safe programming on single variables.

java.util.prefs

This package allows applications to store and retrieve user and system preference and configuration data.

javax.annotation.processing

Facilities for declaring annotation processors and for allowing annotation processors to communicate with an annotation processing tool environment.

javax.crypto

Provides the classes and interfaces for cryptographic operations.

javax.imageio.metadata

A package of the Java Image I/O API dealing with reading and writing metadata.

javax.imageio.spi

A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.

javax.lang.model

Types and hierarchies of packages comprising a Java language model, a reflective API that models the declarations and types of the Java programming language.

javax.lang.model.element

Interfaces used to model elements of the Java programming language.

javax.lang.model.type

Interfaces used to model Java programming language types.

javax.management

Provides the core classes for the Java Management Extensions.

javax.management.loading

Provides the classes which implement advanced dynamic loading.

javax.management.openmbean

Provides the open data types and Open MBean descriptor classes.

javax.naming.spi

Provides the means for dynamically plugging in support for accessingnaming and directory services through thejavax.namingand related packages.

javax.print

Provides the principal classes and interfaces for the Java Print Service API.

javax.print.attribute

Provides classes and interfaces that describe the types of Java Print Service attributes and how they can be collected into attribute sets.

javax.print.attribute.standard

Packagejavax.print.attribute.standard contains classes for specific printing attributes.

javax.script

The scripting API consists of interfaces and classes that defineJava Scripting Engines and providesa framework for their use in Java applications.

javax.security.auth

This package provides a framework for authentication and authorization.

javax.sound.midi

Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.

javax.sound.sampled

Provides interfaces and classes for capture, processing, and playback of sampled audio data.

javax.sql

Provides the API for server side data source access and processing from the Java programming language.

javax.sql.rowset

Standard interfaces and base classes for JDBCRowSet implementations.

javax.sql.rowset.serial

Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.

javax.swing

Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.

javax.swing.event

Provides for events fired by Swing components.

javax.swing.plaf.synth

Synth is a skinnable look and feel in which all painting is delegated.

javax.swing.table

Provides classes and interfaces for dealing withjavax.swing.JTable.

javax.swing.text

Provides classes and interfaces that deal with editable and noneditable text components.

javax.swing.tree

Provides classes and interfaces for dealing withjavax.swing.JTree.

javax.tools

Provides interfaces for tools which can be invoked from a program, for example, compilers.

javax.xml.xpath

Provides anobject-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.

Uses ofClass injava.awt
Methods injava.awt with parameters of typeClass
Modifier and Type
Method
Description
<T extendsDragGestureRecognizer> T
Toolkit.createDragGestureRecognizer(Class<T> abstractRecognizerClass,DragSource ds,Component c, int srcActions,DragGestureListener dgl)
Creates a concrete, platform dependent, subclass of the abstract DragGestureRecognizer class requested, and associates it with the DragSource, Component and DragGestureListener specified.
static <T extendsEventListener> T[]
AWTEventMulticaster.getListeners(EventListener l,Class<T> listenerType)
Returns an array of all the objects chained asFooListeners by the specifiedjava.util.EventListener.
<T extendsEventListener> T[]
Button.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisButton.
<T extendsEventListener> T[]
Checkbox.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisCheckbox.
<T extendsEventListener> T[]
CheckboxMenuItem.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisCheckboxMenuItem.
<T extendsEventListener> T[]
Choice.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisChoice.
<T extendsEventListener> T[]
Component.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisComponent.
<T extendsEventListener> T[]
Container.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisContainer.
<T extendsEventListener> T[]
List.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisList.
<T extendsEventListener> T[]
MenuItem.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisMenuItem.
<T extendsEventListener> T[]
Scrollbar.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisScrollbar.
<T extendsEventListener> T[]
TextComponent.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisTextComponent.
<T extendsEventListener> T[]
TextField.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisTextField.
<T extendsEventListener> T[]
Window.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisWindow.
protected static void
AWTKeyStroke.registerSubclass(Class<?> subclass)
Deprecated.
Uses ofClass injava.awt.datatransfer
Methods injava.awt.datatransfer that returnClass
Modifier and Type
Method
Description
finalClass<?>
DataFlavor.getDefaultRepresentationClass()
Returns the default representation class.
Class<?>
DataFlavor.getRepresentationClass()
Returns theClass which objects supporting thisDataFlavor will return when thisDataFlavor is requested.
protected static finalClass<?>
DataFlavor.tryToLoadClass(String className,ClassLoader fallback)
Tries to load a class from: the bootstrap loader, the system loader, the context loader (if one is present) and finally the loader specified.
Constructors injava.awt.datatransfer with parameters of typeClass
Modifier
Constructor
Description

DataFlavor(Class<?> representationClass,String humanPresentableName)
Constructs aDataFlavor that represents a Java class.
Uses ofClass injava.awt.dnd
Methods injava.awt.dnd with parameters of typeClass
Modifier and Type
Method
Description
<T extendsDragGestureRecognizer> T
DragSource.createDragGestureRecognizer(Class<T> recognizerAbstractClass,Component c, int actions,DragGestureListener dgl)
Creates a newDragGestureRecognizer that implements the specified abstract subclass ofDragGestureRecognizer, and sets the specifiedComponent andDragGestureListener on the newly created object.
<T extendsEventListener> T[]
DragSource.getListeners(Class<T> listenerType)
Gets all the objects currently registered asFooListeners upon thisDragSource.
Uses ofClass injava.awt.image.renderable
Methods injava.awt.image.renderable that returnClass
Modifier and Type
Method
Description
Class<?>[]
ParameterBlock.getParamClasses()
Returns an array of Class objects describing the types of the parameters.
Uses ofClass injava.beans
Methods injava.beans that returnClass
Modifier and Type
Method
Description
Class<?>
BeanDescriptor.getBeanClass()
Gets the bean's Class object.
Class<?>
BeanDescriptor.getCustomizerClass()
Gets the Class object for the bean's customizer.
Class<?>
IndexedPropertyDescriptor.getIndexedPropertyType()
Returns the Java type info for the indexed property.
Class<?>
EventSetDescriptor.getListenerType()
Gets theClass object for the target interface.
Class<?>
PropertyDescriptor.getPropertyEditorClass()
Gets any explicit PropertyEditor Class that has been registered for this property.
Class<?>
PropertyDescriptor.getPropertyType()
Returns the Java type info for the property.
Methods injava.beans with parameters of typeClass
Modifier and Type
Method
Description
static <T> T
EventHandler.create(Class<T> listenerInterface,Object target,String action)
Creates an implementation oflistenerInterface in whichall of the methods in the listener interface apply the handler'saction to thetarget.
static <T> T
EventHandler.create(Class<T> listenerInterface,Object target,String action,String eventPropertyName)
/** Creates an implementation oflistenerInterface in whichall of the methods pass the value of the event expression,eventPropertyName, to the final method in the statement,action, which is applied to thetarget.
static <T> T
EventHandler.create(Class<T> listenerInterface,Object target,String action,String eventPropertyName,String listenerMethodName)
Creates an implementation oflistenerInterface in which the method namedlistenerMethodName passes the value of the event expression,eventPropertyName, to the final method in the statement,action, which is applied to thetarget.
staticPropertyEditor
PropertyEditorManager.findEditor(Class<?> targetType)
Locate a value editor for a given target type.
static void
Introspector.flushFromCaches(Class<?> clz)
Flush the Introspector's internal cached information for a given class.
staticBeanInfo
Introspector.getBeanInfo(Class<?> beanClass)
Introspect on a Java Bean and learn about all its properties, exposed methods, and events.
staticBeanInfo
Introspector.getBeanInfo(Class<?> beanClass, int flags)
Introspect on a Java bean and learn about all its properties, exposed methods, and events, subject to some control flags.
staticBeanInfo
Introspector.getBeanInfo(Class<?> beanClass,Class<?> stopClass)
Introspect on a Java bean and learn all about its properties, exposed methods, below a given "stop" point.
staticBeanInfo
Introspector.getBeanInfo(Class<?> beanClass,Class<?> stopClass, int flags)
Introspect on a Java Bean and learn about all its properties, exposed methods and events, below a givenstopClass point subject to some controlflags.
staticObject
Beans.getInstanceOf(Object bean,Class<?> targetType)
From a given bean, obtain an object representing a specified type view of that source object.
PersistenceDelegate
Encoder.getPersistenceDelegate(Class<?> type)
Returns the persistence delegate for the given type.
protected void
DefaultPersistenceDelegate.initialize(Class<?> type,Object oldInstance,Object newInstance,Encoder out)
This default implementation of theinitialize method assumes all state held in objects of this type is exposed via the matching pairs of "setter" and "getter" methods in the order they are returned by the Introspector.
protected void
PersistenceDelegate.initialize(Class<?> type,Object oldInstance,Object newInstance,Encoder out)
Produce a series of statements with side effects onnewInstance so that the new instance becomesequivalent tooldInstance.
static boolean
Beans.isInstanceOf(Object bean,Class<?> targetType)
Check if a bean can be viewed as a given target type.
static void
PropertyEditorManager.registerEditor(Class<?> targetType,Class<?> editorClass)
Registers an editor class to edit values of the given target class.
void
Encoder.setPersistenceDelegate(Class<?> type,PersistenceDelegate delegate)
Associates the specified persistence delegate with the given type.
void
PropertyDescriptor.setPropertyEditorClass(Class<?> propertyEditorClass)
Normally PropertyEditors will be found using the PropertyEditorManager.
Constructors injava.beans with parameters of typeClass
Modifier
Constructor
Description

BeanDescriptor(Class<?> beanClass)
Create a BeanDescriptor for a bean that doesn't have a customizer.

BeanDescriptor(Class<?> beanClass,Class<?> customizerClass)
Create a BeanDescriptor for a bean that has a customizer.

EventSetDescriptor(Class<?> sourceClass,String eventSetName,Class<?> listenerType,String listenerMethodName)
Creates anEventSetDescriptor assuming that you are following the most simple standard design pattern where a named event "fred" is (1) delivered as a call on the single method of interface FredListener, (2) has a single argument of type FredEvent, and (3) where the FredListener may be registered with a call on an addFredListener method of the source component and removed with a call on a removeFredListener method.

EventSetDescriptor(Class<?> sourceClass,String eventSetName,Class<?> listenerType,String[] listenerMethodNames,String addListenerMethodName,String removeListenerMethodName)
Creates anEventSetDescriptor from scratch using string names.

EventSetDescriptor(Class<?> sourceClass,String eventSetName,Class<?> listenerType,String[] listenerMethodNames,String addListenerMethodName,String removeListenerMethodName,String getListenerMethodName)
This constructor creates an EventSetDescriptor from scratch using string names.

EventSetDescriptor(String eventSetName,Class<?> listenerType,MethodDescriptor[] listenerMethodDescriptors,Method addListenerMethod,Method removeListenerMethod)
Creates anEventSetDescriptor from scratch usingjava.lang.reflect.MethodDescriptor andjava.lang.Class objects.

EventSetDescriptor(String eventSetName,Class<?> listenerType,Method[] listenerMethods,Method addListenerMethod,Method removeListenerMethod)
Creates anEventSetDescriptor from scratch usingjava.lang.reflect.Method andjava.lang.Class objects.

EventSetDescriptor(String eventSetName,Class<?> listenerType,Method[] listenerMethods,Method addListenerMethod,Method removeListenerMethod,Method getListenerMethod)
This constructor creates an EventSetDescriptor from scratch using java.lang.reflect.Method and java.lang.Class objects.

IndexedPropertyDescriptor(String propertyName,Class<?> beanClass)
This constructor constructs an IndexedPropertyDescriptor for a property that follows the standard Java conventions by having getFoo and setFoo accessor methods, for both indexed access and array access.

IndexedPropertyDescriptor(String propertyName,Class<?> beanClass,String readMethodName,String writeMethodName,String indexedReadMethodName,String indexedWriteMethodName)
This constructor takes the name of a simple property, and method names for reading and writing the property, both indexed and non-indexed.

PropertyDescriptor(String propertyName,Class<?> beanClass)
Constructs a PropertyDescriptor for a property that follows the standard Java convention by having getFoo and setFoo accessor methods.

PropertyDescriptor(String propertyName,Class<?> beanClass,String readMethodName,String writeMethodName)
This constructor takes the name of a simple property, and method names for reading and writing the property.
Uses ofClass injava.beans.beancontext
Fields injava.beans.beancontext declared asClass
Modifier and Type
Field
Description
protectedClass<?>
BeanContextServiceAvailableEvent.serviceClass
Deprecated, for removal: This API element is subject to removal in a future version.
AClass reference to the newly available service
protectedClass<?>
BeanContextServiceRevokedEvent.serviceClass
Deprecated, for removal: This API element is subject to removal in a future version.
AClass reference to the service that is being revoked.
Methods injava.beans.beancontext that returnClass
Modifier and Type
Method
Description
Class<?>
BeanContextServiceAvailableEvent.getServiceClass()
Deprecated, for removal: This API element is subject to removal in a future version.
Gets the service class that is the subject of this notification.
Class<?>
BeanContextServiceRevokedEvent.getServiceClass()
Deprecated, for removal: This API element is subject to removal in a future version.
Gets the service class that is the subject of this notification
Methods injava.beans.beancontext with parameters of typeClass
Modifier and Type
Method
Description
boolean
BeanContextServices.addService(Class<?> serviceClass,BeanContextServiceProvider serviceProvider)
Deprecated, for removal: This API element is subject to removal in a future version.
Adds a service to this BeanContext.
boolean
BeanContextServicesSupport.addService(Class<?> serviceClass,BeanContextServiceProvider bcsp)
Deprecated, for removal: This API element is subject to removal in a future version.
add a service
protected boolean
BeanContextServicesSupport.addService(Class<?> serviceClass,BeanContextServiceProvider bcsp, boolean fireEvent)
Deprecated, for removal: This API element is subject to removal in a future version.
add a service
protected static final boolean
BeanContextSupport.classEquals(Class<?> first,Class<?> second)
Deprecated, for removal: This API element is subject to removal in a future version.
Tests to see if two class objects, or their names are equal.
protectedBeanContextServicesSupport.BCSSServiceProvider
BeanContextServicesSupport.createBCSSServiceProvider(Class<?> sc,BeanContextServiceProvider bcsp)
Deprecated, for removal: This API element is subject to removal in a future version.
subclasses can override this method to create new subclasses of BCSSServiceProvider without having to override addService() in order to instantiate.
protected final void
BeanContextServicesSupport.fireServiceAdded(Class<?> serviceClass)
Deprecated, for removal: This API element is subject to removal in a future version.
Fires aBeanContextServiceEvent notifying of a new service.
protected final void
BeanContextServicesSupport.fireServiceRevoked(Class<?> serviceClass, boolean revokeNow)
Deprecated, for removal: This API element is subject to removal in a future version.
Fires aBeanContextServiceRevokedEvent indicating that a particular service is no longer available.
Iterator<?>
BeanContextServiceProvider.getCurrentServiceSelectors(BeanContextServices bcs,Class<?> serviceClass)
Deprecated, for removal: This API element is subject to removal in a future version.
Invoked byBeanContextServices, this method gets the current service selectors for the specified service.
Iterator<?>
BeanContextServices.getCurrentServiceSelectors(Class<?> serviceClass)
Deprecated, for removal: This API element is subject to removal in a future version.
Gets the list of service dependent service parameters (Service Selectors) for the specified service, by calling getCurrentServiceSelectors() on the underlying BeanContextServiceProvider.
Iterator<?>
BeanContextServicesSupport.BCSSProxyServiceProvider.getCurrentServiceSelectors(BeanContextServices bcs,Class<?> serviceClass)

Iterator<?>
BeanContextServicesSupport.getCurrentServiceSelectors(Class<?> serviceClass)
Deprecated, for removal: This API element is subject to removal in a future version.

Object
BeanContextServiceProvider.getService(BeanContextServices bcs,Object requestor,Class<?> serviceClass,Object serviceSelector)
Deprecated, for removal: This API element is subject to removal in a future version.
Invoked byBeanContextServices, this method requests an instance of a service from thisBeanContextServiceProvider.
Object
BeanContextServices.getService(BeanContextChild child,Object requestor,Class<?> serviceClass,Object serviceSelector,BeanContextServiceRevokedListener bcsrl)
Deprecated, for removal: This API element is subject to removal in a future version.
ABeanContextChild, or any arbitrary object associated with aBeanContextChild, may obtain a reference to a currently registered service from its nestingBeanContextServices via invocation of this method.
Object
BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs,Object requestor,Class<?> serviceClass,Object serviceSelector)

Object
BeanContextServicesSupport.getService(BeanContextChild child,Object requestor,Class<?> serviceClass,Object serviceSelector,BeanContextServiceRevokedListener bcsrl)
Deprecated, for removal: This API element is subject to removal in a future version.
obtain a service which may be delegated
boolean
BeanContextServices.hasService(Class<?> serviceClass)
Deprecated, for removal: This API element is subject to removal in a future version.
Reports whether or not a given service is currently available from this context.
boolean
BeanContextServicesSupport.hasService(Class<?> serviceClass)
Deprecated, for removal: This API element is subject to removal in a future version.
has a service, which may be delegated
boolean
BeanContextServiceRevokedEvent.isServiceClass(Class<?> service)
Deprecated, for removal: This API element is subject to removal in a future version.
Checks this event to determine whether or not the service being revoked is of a particular class.
void
BeanContextServices.revokeService(Class<?> serviceClass,BeanContextServiceProvider serviceProvider, boolean revokeCurrentServicesNow)
Deprecated, for removal: This API element is subject to removal in a future version.
BeanContextServiceProviders wishing to remove a currently registered service from this context may do so via invocation of this method.
void
BeanContextServicesSupport.revokeService(Class<?> serviceClass,BeanContextServiceProvider bcsp, boolean revokeCurrentServicesNow)
Deprecated, for removal: This API element is subject to removal in a future version.
remove a service
Constructors injava.beans.beancontext with parameters of typeClass
Modifier
Constructor
Description

BeanContextServiceAvailableEvent(BeanContextServices bcs,Class<?> sc)
Deprecated, for removal: This API element is subject to removal in a future version.
Construct aBeanContextAvailableServiceEvent.

BeanContextServiceRevokedEvent(BeanContextServices bcs,Class<?> sc, boolean invalidate)
Deprecated, for removal: This API element is subject to removal in a future version.
Construct aBeanContextServiceEvent.
Uses ofClass injava.io
Methods injava.io that returnClass
Modifier and Type
Method
Description
Class<?>
ObjectStreamClass.forClass()
Return the class in the local VM that this version is mapped to.
Class<?>
ObjectStreamField.getType()
Get the type of the field.
protectedClass<?>
ObjectInputStream.resolveClass(ObjectStreamClass desc)
Load the local class equivalent of the specified stream class description.
protectedClass<?>
ObjectInputStream.resolveProxyClass(String[] interfaces)
Returns a proxy class that implements the interfaces named in a proxy class descriptor; subclasses may implement this method to read custom data from the stream along with the descriptors for dynamic proxy classes, allowing them to use an alternate loading mechanism for the interfaces and the proxy class.
Class<?>
ObjectInputFilter.FilterInfo.serialClass()
The class of an object being deserialized.
Methods injava.io with parameters of typeClass
Modifier and Type
Method
Description
protected void
ObjectOutputStream.annotateClass(Class<?> cl)
Subclasses may implement this method to allow class data to be stored in the stream.
protected void
ObjectOutputStream.annotateProxyClass(Class<?> cl)
Subclasses may implement this method to store custom data in the stream along with descriptors for dynamic proxy classes.
staticObjectStreamClass
ObjectStreamClass.lookup(Class<?> cl)
Find the descriptor for a class that can be serialized.
staticObjectStreamClass
ObjectStreamClass.lookupAny(Class<?> cl)
Returns the descriptor for any class, regardless of whether it implementsSerializable.
Method parameters injava.io with type arguments of typeClass
Modifier and Type
Method
Description
staticObjectInputFilter
ObjectInputFilter.allowFilter(Predicate<Class<?>> predicate,ObjectInputFilter.Status otherStatus)
Returns a filter that returnsStatus.ALLOWED if the predicate on the class istrue.
staticObjectInputFilter
ObjectInputFilter.rejectFilter(Predicate<Class<?>> predicate,ObjectInputFilter.Status otherStatus)
Returns a filter that returnsStatus.REJECTED if the predicate on the class istrue.
Constructors injava.io with parameters of typeClass
Modifier
Constructor
Description

ObjectStreamField(String name,Class<?> type)
Create a Serializable field with the specified type.

ObjectStreamField(String name,Class<?> type, boolean unshared)
Creates an ObjectStreamField representing a serializable field with the given name and type.
Uses ofClass injava.lang
Classes injava.lang that implement interfaces with type arguments of typeClass
Modifier and Type
Class
Description
final class
Class<T>
Instances of the classClass represent classes and interfaces in a running Java application.
Fields injava.lang declared asClass
Modifier and Type
Field
Description
static finalClass<Boolean>
Boolean.TYPE
The Class object representing the primitive type boolean.
static finalClass<Byte>
Byte.TYPE
TheClass instance representing the primitive typebyte.
static finalClass<Character>
Character.TYPE
TheClass instance representing the primitive typechar.
static finalClass<Double>
Double.TYPE
TheClass instance representing the primitive typedouble.
static finalClass<Float>
Float.TYPE
TheClass instance representing the primitive typefloat.
static finalClass<Integer>
Integer.TYPE
TheClass instance representing the primitive typeint.
static finalClass<Long>
Long.TYPE
TheClass instance representing the primitive typelong.
static finalClass<Short>
Short.TYPE
TheClass instance representing the primitive typeshort.
static finalClass<Void>
Void.TYPE
TheClass object representing the pseudo-type corresponding to the keywordvoid.
Methods injava.lang that returnClass
Modifier and Type
Method
Description
Class<?>
Class.arrayType()
Returns aClass for an array type whose component type is described by thisClass.
 Class<? extends U>
Class.asSubclass(Class clazz)
Casts thisClass object to represent a subclass of the class represented by the specified class object.
Class<?>
Class.componentType()
Returns the component type of thisClass, if it describes an array type, ornull otherwise.
protected finalClass<?>
ClassLoader.defineClass(byte[] b, int off, int len)
Deprecated.
Replaced bydefineClass(String, byte[], int, int)
protected finalClass<?>
ClassLoader.defineClass(String name, byte[] b, int off, int len)
Converts an array of bytes into an instance of classClass.
protected finalClass<?>
ClassLoader.defineClass(String name, byte[] b, int off, int len,ProtectionDomain protectionDomain)
Converts an array of bytes into an instance of classClass, with a givenProtectionDomain.
protected finalClass<?>
ClassLoader.defineClass(String name,ByteBuffer b,ProtectionDomain protectionDomain)
Converts aByteBuffer into an instance of classClass, with the givenProtectionDomain.
Class<? extendsEnum>
EnumConstantNotPresentException.enumType()
Returns the type of the missing enum constant.
protectedClass<?>
ClassLoader.findClass(String name)
Finds the class with the specifiedbinary name.
protectedClass<?>
ClassLoader.findClass(String moduleName,String name)
Finds the class with the givenbinary name in a module defined to this class loader.
protected finalClass<?>
ClassLoader.findLoadedClass(String name)
Returns the class with the givenbinary name if this loader has been recorded by the Java virtual machine as an initiating loader of a class with thatbinary name.
protected finalClass<?>
ClassLoader.findSystemClass(String name)
Finds a class with the specifiedbinary name, loading it if necessary.
staticClass<?>
Class.forName(Module module,String name)
Returns theClass with the givenbinary name in the given module.
staticClass<?>
Class.forName(String className)
Returns theClass object associated with the class or interface with the given string name.
staticClass<?>
Class.forName(String name, boolean initialize,ClassLoader loader)
Returns theClass object associated with the class or interface with the given string name, using the given class loader.
staticClass<?>
Class.forPrimitiveName(String primitiveName)
Returns theClass object associated with theprimitive type of the given name.
Class<?>
StackWalker.getCallerClass()
Gets theClass object of the caller who invoked the method that invokedgetCallerClass.
finalClass<?>
Object.getClass()
Returns the runtime class of thisObject.
protectedClass<?>[]
SecurityManager.getClassContext()
Deprecated, for removal: This API element is subject to removal in a future version.
Returns the current execution stack as an array of classes.
Class<?>[]
Class.getClasses()
Returns an array containingClass objects representing all the public classes and interfaces that are members of the class represented by thisClass object.
Class<?>
Class.getComponentType()
Returns theClass representing the component type of an array.
Class<?>[]
Class.getDeclaredClasses()
Returns an array ofClass objects reflecting all the classes and interfaces declared as members of the class represented by thisClass object.
Class<?>
Class.getDeclaringClass()
If the class or interface represented by thisClass object is a member of another class, returns theClass object representing the class in which it was declared.
finalClass<E>
Enum.getDeclaringClass()
Returns the Class object corresponding to this enum constant's enum type.
Class<?>
StackWalker.StackFrame.getDeclaringClass()
Returns the declaringClass for the method represented by this stack frame.
Class<?>
Class.getEnclosingClass()
Returns the immediately enclosing class of the underlying class.
Class<?>[]
Class.getInterfaces()
Returns the interfaces directly implemented by the class or interface represented by thisClass object.
Class<?>
Class.getNestHost()
Returns the nest host of thenest to which the class or interface represented by thisClass object belongs.
Class<?>[]
Class.getNestMembers()
Returns an array containingClass objects representing all the classes and interfaces that are members of the nest to which the class or interface represented by thisClass object belongs.
Class<?>[]
Class.getPermittedSubclasses()
Returns an array containingClass objects representing the direct subinterfaces or subclasses permitted to extend or implement this class or interface if it is sealed.
Class<? superT>
Class.getSuperclass()
Returns theClass representing the direct superclass of the entity (class, interface, primitive type or void) represented by thisClass.
Class<?>
ClassLoader.loadClass(String name)
Loads the class with the specifiedbinary name.
protectedClass<?>
ClassLoader.loadClass(String name, boolean resolve)
Loads the class with the specifiedbinary name.
Methods injava.lang that return types with arguments of typeClass
Modifier and Type
Method
Description
TypeVariable<Class<T>>[]
Class.getTypeParameters()
Returns an array ofTypeVariable objects that represent the type variables declared by the generic declaration represented by thisGenericDeclaration object, in declaration order.
Methods injava.lang with parameters of typeClass
Modifier and Type
Method
Description
Module
Module.addUses(Class<?> service)
If the caller's module is this module then update this module to add a service dependence on the given service type.
 Class<? extends U>
Class.asSubclass(Class clazz)
Casts thisClass object to represent a subclass of the class represented by the specified class object.
boolean
Module.canUse(Class<?> service)
Indicates if this module has a service dependence on the given service type.
protected abstractT
ClassValue.computeValue(Class<?> type)
Computes the given class's derived value for thisClassValue.
T
ClassValue.get(Class<?> type)
Returns the value for the given class.
<A extendsAnnotation> A
Class.getAnnotation(Class<A> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
Module.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<A extendsAnnotation> A
Package.getAnnotation(Class<A> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<A extendsAnnotation> A[]
Class.getAnnotationsByType(Class<A> annotationClass)
Returns annotations that areassociated with this element.
<A extendsAnnotation> A[]
Package.getAnnotationsByType(Class<A> annotationClass)
Returns annotations that areassociated with this element.
Constructor<T>
Class.getConstructor(Class<?>... parameterTypes)
Returns aConstructor object that reflects the specified public constructor of the class represented by thisClass object.
<A extendsAnnotation> A
Class.getDeclaredAnnotation(Class<A> annotationClass)
Returns this element's annotation for the specified type if such an annotation isdirectly present, else null.
<A extendsAnnotation> A
Package.getDeclaredAnnotation(Class<A> annotationClass)
Returns this element's annotation for the specified type if such an annotation isdirectly present, else null.
<A extendsAnnotation> A[]
Class.getDeclaredAnnotationsByType(Class<A> annotationClass)
Returns this element's annotation(s) for the specified type if such annotations are eitherdirectly present orindirectly present.
<A extendsAnnotation> A[]
Package.getDeclaredAnnotationsByType(Class<A> annotationClass)

Constructor<T>
Class.getDeclaredConstructor(Class<?>... parameterTypes)
Returns aConstructor object that reflects the specified constructor of the class represented by thisClass object.
Method
Class.getDeclaredMethod(String name,Class<?>... parameterTypes)
Returns aMethod object that reflects the specified declared method of the class or interface represented by thisClass object.
Method
Class.getMethod(String name,Class<?>... parameterTypes)
Returns aMethod object that reflects the specified public member method of the class or interface represented by thisClass object.
boolean
Class.isAnnotationPresent(Class<? extendsAnnotation> annotationClass)
Returns true if an annotation for the specified type ispresent on this element, else false.
boolean
Package.isAnnotationPresent(Class<? extendsAnnotation> annotationClass)
Returns true if an annotation for the specified type ispresent on this element, else false.
boolean
Class.isAssignableFrom(Class<?> cls)
Determines if the class or interface represented by thisClass object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specifiedClass parameter.
boolean
Class.isNestmateOf(Class<?> c)
Determines if the givenClass is a nestmate of the class or interface represented by thisClass object.
void
ClassValue.remove(Class<?> type)
Removes the associated value for the given class.
protected final void
ClassLoader.resolveClass(Class<?> c)
Links the specified class.
protected final void
ClassLoader.setSigners(Class<?> c,Object[] signers)
Sets the signers of a class.
static <T extendsEnum<T>> T
Enum.valueOf(Class<T> enumClass,String name)
Returns the enum constant of the specified enum class with the specified name.
Constructors injava.lang with parameters of typeClass
Modifier
Constructor
Description

EnumConstantNotPresentException(Class<? extendsEnum> enumType,String constantName)
Constructs anEnumConstantNotPresentException for the specified constant.
Uses ofClass injava.lang.annotation
Methods injava.lang.annotation that returnClass
Modifier and Type
Method
Description
Class<? extendsAnnotation>
Annotation.annotationType()
Returns the annotation interface of this annotation.
Class<? extendsAnnotation>
IncompleteAnnotationException.annotationType()
Returns the Class object for the annotation interface with the missing element.
Constructors injava.lang.annotation with parameters of typeClass
Modifier
Constructor
Description

IncompleteAnnotationException(Class<? extendsAnnotation> annotationType,String elementName)
Constructs an IncompleteAnnotationException to indicate that the named element was missing from the specified annotation interface.
Uses ofClass injava.lang.classfile^PREVIEW
Methods injava.lang.classfile^PREVIEW with parameters of typeClass
Modifier and Type
Method
Description
<T extendsPoolEntry^PREVIEW> T
ClassReader.readEntry(int offset,Class<T> cls)
Returns the constant pool entry of a given type whose index is given at the specified offset within the classfile.
<T extendsPoolEntry^PREVIEW> T
ClassReader.readEntryOrNull(int offset,Class<T> cls)
Returns the constant pool entry of a given type whose index is given at the specified offset within the classfile, or null if the index at the specified offset is zero.
Uses ofClass injava.lang.classfile.constantpool^PREVIEW
Methods injava.lang.classfile.constantpool^PREVIEW with parameters of typeClass
Modifier and Type
Method
Description
<T extendsPoolEntry^PREVIEW> T
ConstantPool.entryByIndex(int index,Class<T> cls)
Returns the entry of a given type at the specified index.
Uses ofClass injava.lang.constant
Methods injava.lang.constant that returnClass
Modifier and Type
Method
Description
Class<?>
ClassDesc.resolveConstantDesc(MethodHandles.Lookup lookup)
Uses ofClass injava.lang.foreign
Methods injava.lang.foreign that returnClass
Modifier and Type
Method
Description
Class<?>
ValueLayout.carrier()
Returns the carrier associated with this value layout.
Uses ofClass injava.lang.instrument
Methods injava.lang.instrument that returnClass
Modifier and Type
Method
Description
Class[]
Instrumentation.getAllLoadedClasses()
Returns an array of all classes currently loaded by the JVM.
Class<?>
ClassDefinition.getDefinitionClass()
Returns the class.
Class[]
Instrumentation.getInitiatedClasses(ClassLoader loader)
Returns an array of all classes whichloader can find by name viaClassLoader::loadClass,Class::forName and bytecode linkage.
Methods injava.lang.instrument with parameters of typeClass
Modifier and Type
Method
Description
boolean
Instrumentation.isModifiableClass(Class<?> theClass)
Tests whether a class is modifiable byretransformation orredefinition.
void
Instrumentation.retransformClasses(Class<?>... classes)
Retransform the supplied set of classes.
default byte[]
ClassFileTransformer.transform(ClassLoader loader,String className,Class<?> classBeingRedefined,ProtectionDomain protectionDomain, byte[] classfileBuffer)
Transforms the given class file and returns a new replacement class file.
default byte[]
ClassFileTransformer.transform(Module module,ClassLoader loader,String className,Class<?> classBeingRedefined,ProtectionDomain protectionDomain, byte[] classfileBuffer)
Transforms the given class file and returns a new replacement class file.
Constructors injava.lang.instrument with parameters of typeClass
Modifier
Constructor
Description

ClassDefinition(Class<?> theClass, byte[] theClassFile)
Creates a newClassDefinition binding using the supplied class and class file bytes.
Uses ofClass injava.lang.invoke
Classes injava.lang.invoke that implement interfaces with type arguments of typeClass
Modifier and Type
Class
Description
final class
MethodType
A method type represents the arguments and return type accepted and returned by a method handle, or the arguments and return type passed and expected by a method handle caller.
Methods injava.lang.invoke that returnClass
Modifier and Type
Method
Description
<T> Class<T>
MethodHandles.Lookup.accessClass(Class<T> targetClass)
Determines if a class can be accessed from the lookup context defined by thisLookup object.
Class<?>
MethodHandles.Lookup.defineClass(byte[] bytes)
Creates and links a class or interface frombytes with the same class loader and in the same runtime package andprotection domain as this lookup'slookup class as if callingClassLoader::defineClass.
<T> Class<T>
MethodHandles.Lookup.ensureInitialized(Class<T> targetClass)
Ensures thattargetClass has been initialized.
Class<?>
MethodHandles.Lookup.findClass(String targetName)
Looks up a class by name from the lookup context defined by thisLookup object,as if resolved by anldc instruction.
Class<?>
MethodHandleInfo.getDeclaringClass()
Returns the class in which the cracked method handle's underlying member was defined.
Class<?>
MethodType.lastParameterType()
Returns the last parameter type of this method type.
Class<?>
MethodHandles.Lookup.lookupClass()
Tells which class is performing the lookup.
Class<?>[]
MethodType.parameterArray()
Presents the parameter types as an array (a convenience method).
Class<?>
MethodType.parameterType(int num)
Returns the parameter type at the specified index, within this method type.
Class<?>
MethodHandles.Lookup.previousLookupClass()
Reports a lookup class in another module that this lookup object was previously teleported from, ornull.
staticClass<?>
ConstantBootstraps.primitiveClass(MethodHandles.Lookup lookup,String name,Class<?> type)
Returns aClass mirror for the primitive type whose type descriptor is specified byname.
Class<?>
MethodType.returnType()
Returns the return type of this method type.
Class<?>
VarHandle.varType()
Returns the variable type of variables referenced by this VarHandle.
staticClass<?>
MethodHandleProxies.wrapperInstanceType(Object x)
Recovers the unique single-method interface type for which this wrapper instance was created.
Methods injava.lang.invoke that return types with arguments of typeClass
Modifier and Type
Method
Description
List<Class<?>>
VarHandle.coordinateTypes()
Returns the coordinate types for this VarHandle.
List<Class<?>>
MethodType.parameterList()
Presents the parameter types as a list (a convenience method).
Methods injava.lang.invoke with parameters of typeClass
Modifier and Type
Method
Description
<T> Class<T>
MethodHandles.Lookup.accessClass(Class<T> targetClass)
Determines if a class can be accessed from the lookup context defined by thisLookup object.
MethodType
MethodType.appendParameterTypes(Class<?>... ptypesToInsert)
Finds or creates a method type with additional parameter types.
staticMethodHandle
MethodHandles.arrayConstructor(Class<?> arrayClass)
Produces a method handle constructing arrays of a desired type, as if by theanewarray bytecode.
staticMethodHandle
MethodHandles.arrayElementGetter(Class<?> arrayClass)
Produces a method handle giving read access to elements of an array, as if by theaaload bytecode.
staticMethodHandle
MethodHandles.arrayElementSetter(Class<?> arrayClass)
Produces a method handle giving write access to elements of an array, as if by theastore bytecode.
staticVarHandle
MethodHandles.arrayElementVarHandle(Class<?> arrayClass)
Produces a VarHandle giving access to elements of an array of typearrayClass.
staticMethodHandle
MethodHandles.arrayLength(Class<?> arrayClass)
Produces a method handle returning the length of an array, as if by thearraylength bytecode.
staticVarHandle
ConstantBootstraps.arrayVarHandle(MethodHandles.Lookup lookup,String name,Class<VarHandle> type,Class<?> arrayClass)
Finds aVarHandle for an array type.
MethodHandle
MethodHandle.asCollector(int collectArgPos,Class<?> arrayType, int arrayLength)
Makes anarray-collecting method handle, which accepts a given number of positional arguments starting at a given position, and collects them into an array argument.
MethodHandle
MethodHandle.asCollector(Class<?> arrayType, int arrayLength)
Makes anarray-collecting method handle, which accepts a given number of trailing positional arguments and collects them into an array argument.
static <T> T
MethodHandleProxies.asInterfaceInstance(Class<T> intfc,MethodHandle target)
Produces an instance of the given single-method interface which redirects its calls to the given method handle.
MethodHandle
MethodHandle.asSpreader(int spreadArgPos,Class<?> arrayType, int arrayLength)
Makes anarray-spreading method handle, which accepts an array argument at a given position and spreads its elements as positional arguments in place of the array.
MethodHandle
MethodHandle.asSpreader(Class<?> arrayType, int arrayLength)
Makes anarray-spreading method handle, which accepts a trailing array argument and spreads its elements as positional arguments.
MethodHandle
MethodHandle.asVarargsCollector(Class<?> arrayType)
Makes avariable arity adapter which is able to accept any number of trailing positional arguments and collect them into an array argument.
staticVarHandle
MethodHandles.byteArrayViewVarHandle(Class<?> viewArrayClass,ByteOrder byteOrder)
Produces a VarHandle giving access to elements of abyte[] array viewed as if it were a different primitive array type, such asint[] orlong[].
staticVarHandle
MethodHandles.byteBufferViewVarHandle(Class<?> viewArrayClass,ByteOrder byteOrder)
Produces a VarHandle giving access to elements of aByteBuffer viewed as if it were an array of elements of a different primitive component type to that ofbyte, such asint[] orlong[].
staticMethodHandle
MethodHandles.catchException(MethodHandle target,Class<? extendsThrowable> exType,MethodHandle handler)
Makes a method handle which adapts a target method handle, by running it inside an exception handler.
MethodType
MethodType.changeParameterType(int num,Class<?> nptype)
Finds or creates a method type with a single different parameter type.
MethodType
MethodType.changeReturnType(Class<?> nrtype)
Finds or creates a method type with a different return type.
static <T> T
MethodHandles.classData(MethodHandles.Lookup caller,String name,Class<T> type)
Returns theclass data associated with the lookup class of the givencaller lookup object, ornull.
static <T> T
MethodHandles.classDataAt(MethodHandles.Lookup caller,String name,Class<T> type, int index)
Returns the element at the specified index in theclass data, if the class data associated with the lookup class of the givencaller lookup object is aList.
staticMethodHandle
MethodHandles.constant(Class<?> type,Object value)
Produces a method handle of the requested return type which returns the given constant value every time it is invoked.
staticMethodHandle
MethodHandles.dropArguments(MethodHandle target, int pos,Class<?>... valueTypes)
Produces a method handle which will discard some dummy arguments before calling some other specifiedtarget method handle.
staticVarHandle
MethodHandles.dropCoordinates(VarHandle target, int pos,Class<?>... valueTypes)
Returns a var handle which will discard some dummy coordinates before delegating to the target var handle.
<T> Class<T>
MethodHandles.Lookup.ensureInitialized(Class<T> targetClass)
Ensures thattargetClass has been initialized.
static <E extendsEnum<E>> E
ConstantBootstraps.enumConstant(MethodHandles.Lookup lookup,String name,Class<E> type)
Returns anenum constant of the type specified bytype with the name specified byname.
staticObject
ConstantBootstraps.explicitCast(MethodHandles.Lookup lookup,String name,Class<?> dstType,Object value)
Applies a conversion from a source type to a destination type.
staticVarHandle
ConstantBootstraps.fieldVarHandle(MethodHandles.Lookup lookup,String name,Class<VarHandle> type,Class<?> declaringClass,Class<?> fieldType)
Finds aVarHandle for an instance field.
MethodHandle
MethodHandles.Lookup.findConstructor(Class<?> refc,MethodType type)
Produces a method handle which creates an object and initializes it, using the constructor of the specified type.
MethodHandle
MethodHandles.Lookup.findGetter(Class<?> refc,String name,Class<?> type)
Produces a method handle giving read access to a non-static field.
MethodHandle
MethodHandles.Lookup.findSetter(Class<?> refc,String name,Class<?> type)
Produces a method handle giving write access to a non-static field.
MethodHandle
MethodHandles.Lookup.findSpecial(Class<?> refc,String name,MethodType type,Class<?> specialCaller)
Produces an early-bound method handle for a virtual method.
MethodHandle
MethodHandles.Lookup.findStatic(Class<?> refc,String name,MethodType type)
Produces a method handle for a static method.
MethodHandle
MethodHandles.Lookup.findStaticGetter(Class<?> refc,String name,Class<?> type)
Produces a method handle giving read access to a static field.
MethodHandle
MethodHandles.Lookup.findStaticSetter(Class<?> refc,String name,Class<?> type)
Produces a method handle giving write access to a static field.
VarHandle
MethodHandles.Lookup.findStaticVarHandle(Class<?> decl,String name,Class<?> type)
Produces a VarHandle giving access to a static fieldname of typetype declared in a class of typedecl.
VarHandle
MethodHandles.Lookup.findVarHandle(Class<?> recv,String name,Class<?> type)
Produces a VarHandle giving access to a non-static fieldname of typetype declared in a class of typerecv.
MethodHandle
MethodHandles.Lookup.findVirtual(Class<?> refc,String name,MethodType type)
Produces a method handle for a virtual method.
staticObject
ConstantBootstraps.getStaticFinal(MethodHandles.Lookup lookup,String name,Class<?> type)
Returns the value of a static final field declared in the class which is the same as the field's type (or, for primitive-valued fields, declared in the wrapper class.)
staticObject
ConstantBootstraps.getStaticFinal(MethodHandles.Lookup lookup,String name,Class<?> type,Class<?> declaringClass)
Returns the value of a static final field.
staticMethodHandle
MethodHandles.identity(Class<?> type)
Produces a method handle which returns its sole argument when invoked.
MethodHandles.Lookup
MethodHandles.Lookup.in(Class<?> requestedLookupClass)
Creates a lookup on the specified new lookup class.
MethodType
MethodType.insertParameterTypes(int num,Class<?>... ptypesToInsert)
Finds or creates a method type with additional parameter types.
staticObject
ConstantBootstraps.invoke(MethodHandles.Lookup lookup,String name,Class<?> type,MethodHandle handle,Object... args)
Returns the result of invoking a method handle with the provided arguments.
staticMethodType
MethodType.methodType(Class<?> rtype)
Finds or creates a method type with the given components.
staticMethodType
MethodType.methodType(Class<?> rtype,Class<?> ptype0)
Finds or creates a method type with the given components.
staticMethodType
MethodType.methodType(Class<?> rtype,Class<?>[] ptypes)
Finds or creates an instance of the given method type.
staticMethodType
MethodType.methodType(Class<?> rtype,Class<?> ptype0,Class<?>... ptypes)
Finds or creates a method type with the given components.
staticMethodType
MethodType.methodType(Class<?> rtype,MethodType ptypes)
Finds or creates a method type with the given components.
staticMethodType
MethodType.methodType(Class<?> rtype,List<Class<?>> ptypes)
Finds or creates a method type with the given components.
staticObject
ConstantBootstraps.nullConstant(MethodHandles.Lookup lookup,String name,Class<?> type)
Returns anull object reference for the reference type specified bytype.
staticClass<?>
ConstantBootstraps.primitiveClass(MethodHandles.Lookup lookup,String name,Class<?> type)
Returns aClass mirror for the primitive type whose type descriptor is specified byname.
staticMethodHandles.Lookup
MethodHandles.privateLookupIn(Class<?> targetClass,MethodHandles.Lookup caller)
Returns alookup object on a target class to emulate all supported bytecode behaviors, includingprivate access.
<T extendsMember> T
MethodHandleInfo.reflectAs(Class<T> expected,MethodHandles.Lookup lookup)
Reflects the underlying member as a method, constructor, or field object.
static <T extendsMember> T
MethodHandles.reflectAs(Class<T> expected,MethodHandle target)
Performs an unchecked "crack" of adirect method handle.
staticVarHandle
ConstantBootstraps.staticFieldVarHandle(MethodHandles.Lookup lookup,String name,Class<VarHandle> type,Class<?> declaringClass,Class<?> fieldType)
Finds aVarHandle for a static field.
staticMethodHandle
MethodHandles.throwException(Class<?> returnType,Class<? extendsThrowable> exType)
Produces a method handle which will throw exceptions of the givenexType.
staticString
MethodHandleInfo.toString(int kind,Class<?> defc,String name,MethodType type)
Returns a string representation for aMethodHandleInfo, given the four parts of its symbolic reference.
MethodHandle
MethodHandles.Lookup.unreflectSpecial(Method m,Class<?> specialCaller)
Produces a method handle for a reflected method.
staticMethodHandle
MethodHandles.zero(Class<?> type)
Produces a constant method handle of the requested return type which returns the default value for that type every time it is invoked.
Method parameters injava.lang.invoke with type arguments of typeClass
Modifier and Type
Method
Description
MethodType
MethodType.appendParameterTypes(List<Class<?>> ptypesToInsert)
Finds or creates a method type with additional parameter types.
staticMethodHandle
MethodHandles.dropArguments(MethodHandle target, int pos,List<Class<?>> valueTypes)
Produces a method handle which will discard some dummy arguments before calling some other specifiedtarget method handle.
staticMethodHandle
MethodHandles.dropArgumentsToMatch(MethodHandle target, int skip,List<Class<?>> newTypes, int pos)
Adapts a target method handle to match the given parameter type list.
MethodType
MethodType.insertParameterTypes(int num,List<Class<?>> ptypesToInsert)
Finds or creates a method type with additional parameter types.
staticMethodType
MethodType.methodType(Class<?> rtype,List<Class<?>> ptypes)
Finds or creates a method type with the given components.
staticVarHandle
MethodHandles.permuteCoordinates(VarHandle target,List<Class<?>> newCoordinates, int... reorder)
Provides a var handle which adapts the coordinate values of the target var handle, by re-arranging them so that the new coordinates match the provided ones.
Constructors injava.lang.invoke with parameters of typeClass
Modifier
Constructor
Description

SerializedLambda(Class<?> capturingClass,String functionalInterfaceClass,String functionalInterfaceMethodName,String functionalInterfaceMethodSignature, int implMethodKind,String implClass,String implMethodName,String implMethodSignature,String instantiatedMethodType,Object[] capturedArgs)
Create aSerializedLambda from the low-level information present at the lambda factory site.
Uses ofClass injava.lang.management
Methods injava.lang.management that return types with arguments of typeClass
Modifier and Type
Method
Description
staticSet<Class<? extendsPlatformManagedObject>>
ManagementFactory.getPlatformManagementInterfaces()
Returns the set ofClass objects, subinterface ofPlatformManagedObject, representing all management interfaces for monitoring and managing the Java platform.
Methods injava.lang.management with parameters of typeClass
Modifier and Type
Method
Description
static <T extendsPlatformManagedObject> T
ManagementFactory.getPlatformMXBean(Class<T> mxbeanInterface)
Returns the platform MXBean implementing the givenmxbeanInterface which is specified to have one single instance in the Java virtual machine.
static <T extendsPlatformManagedObject> T
ManagementFactory.getPlatformMXBean(MBeanServerConnection connection,Class<T> mxbeanInterface)
Returns the platform MXBean proxy formxbeanInterface which is specified to have one single instance in a Java virtual machine and the proxy will forward the method calls through the givenMBeanServerConnection.
static <T extendsPlatformManagedObject> List<T>
ManagementFactory.getPlatformMXBeans(Class<T> mxbeanInterface)
Returns the list of platform MXBeans implementing the givenmxbeanInterface in the Java virtual machine.
static <T extendsPlatformManagedObject> List<T>
ManagementFactory.getPlatformMXBeans(MBeanServerConnection connection,Class<T> mxbeanInterface)
Returns the list of the platform MXBean proxies for forwarding the method calls of themxbeanInterface through the givenMBeanServerConnection.
static <T> T
ManagementFactory.newPlatformMXBeanProxy(MBeanServerConnection connection,String mxbeanName,Class<T> mxbeanInterface)
Returns a proxy for a platform MXBean interface of a givenMXBean name that forwards its method calls through the givenMBeanServerConnection.
Uses ofClass injava.lang.reflect
Methods injava.lang.reflect that returnClass
Modifier and Type
Method
Description
Class<T>
Constructor.getDeclaringClass()
Returns theClass object representing the class that declares the constructor represented by this object.
abstractClass<?>
Executable.getDeclaringClass()
Returns theClass object representing the class or interface that declares the executable represented by this object.
Class<?>
Field.getDeclaringClass()
Returns theClass object representing the class or interface that declares the field represented by thisField object.
Class<?>
Member.getDeclaringClass()
Returns the Class object representing the class or interface that declares the member or constructor represented by this Member.
Class<?>
Method.getDeclaringClass()
Returns theClass object representing the class or interface that declares the method represented by this object.
Class<?>
RecordComponent.getDeclaringRecord()
Returns the record class which declares this record component.
Class<?>[]
Constructor.getExceptionTypes()
Returns an array ofClass objects that represent the types of exceptions declared to be thrown by the underlying executable represented by this object.
abstractClass<?>[]
Executable.getExceptionTypes()
Returns an array ofClass objects that represent the types of exceptions declared to be thrown by the underlying executable represented by this object.
Class<?>[]
Method.getExceptionTypes()
Returns an array ofClass objects that represent the types of exceptions declared to be thrown by the underlying executable represented by this object.
Class<?>[]
Constructor.getParameterTypes()
Returns an array ofClass objects that represent the formal parameter types, in declaration order, of the executable represented by this object.
abstractClass<?>[]
Executable.getParameterTypes()
Returns an array ofClass objects that represent the formal parameter types, in declaration order, of the executable represented by this object.
Class<?>[]
Method.getParameterTypes()
Returns an array ofClass objects that represent the formal parameter types, in declaration order, of the executable represented by this object.
staticClass<?>
Proxy.getProxyClass(ClassLoader loader,Class<?>... interfaces)
Deprecated.
Proxy classes generated in a named module are encapsulated and not accessible to code outside its module.
Class<?>
Method.getReturnType()
Returns aClass object that represents the formal return type of the method represented by thisMethod object.
Class<?>
Field.getType()
Returns aClass object that identifies the declared type for the field represented by thisField object.
Class<?>
Parameter.getType()
Returns aClass object that identifies the declared type for the parameter represented by thisParameter object.
Class<?>
RecordComponent.getType()
Returns aClass that identifies the declared type for this record component.
Methods injava.lang.reflect with parameters of typeClass
Modifier and Type
Method
Description
<T extendsAnnotation> T
AccessibleObject.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
AnnotatedElement.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
AnnotatedType.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
Constructor.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
Executable.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
Field.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
Method.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
Parameter.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T
RecordComponent.getAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation ispresent, else null.
<T extendsAnnotation> T[]
AccessibleObject.getAnnotationsByType(Class<T> annotationClass)
Returns annotations that areassociated with this element.
default <T extendsAnnotation> T[]
AnnotatedElement.getAnnotationsByType(Class<T> annotationClass)
Returns annotations that areassociated with this element.
<T extendsAnnotation> T[]
Executable.getAnnotationsByType(Class<T> annotationClass)
Returns annotations that areassociated with this element.
<T extendsAnnotation> T[]
Field.getAnnotationsByType(Class<T> annotationClass)
Returns annotations that areassociated with this element.
<T extendsAnnotation> T[]
Parameter.getAnnotationsByType(Class<T> annotationClass)
Returns annotations that areassociated with this element.
<T extendsAnnotation> T
AccessibleObject.getDeclaredAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation isdirectly present, else null.
default <T extendsAnnotation> T
AnnotatedElement.getDeclaredAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation isdirectly present, else null.
<T extendsAnnotation> T
Parameter.getDeclaredAnnotation(Class<T> annotationClass)
Returns this element's annotation for the specified type if such an annotation isdirectly present, else null.
<T extendsAnnotation> T[]
AccessibleObject.getDeclaredAnnotationsByType(Class<T> annotationClass)
Returns this element's annotation(s) for the specified type if such annotations are eitherdirectly present orindirectly present.
default <T extendsAnnotation> T[]
AnnotatedElement.getDeclaredAnnotationsByType(Class<T> annotationClass)
Returns this element's annotation(s) for the specified type if such annotations are eitherdirectly present orindirectly present.
<T extendsAnnotation> T[]
Parameter.getDeclaredAnnotationsByType(Class<T> annotationClass)
Returns this element's annotation(s) for the specified type if such annotations are eitherdirectly present orindirectly present.
staticClass<?>
Proxy.getProxyClass(ClassLoader loader,Class<?>... interfaces)
Deprecated.
Proxy classes generated in a named module are encapsulated and not accessible to code outside its module.
boolean
AccessibleObject.isAnnotationPresent(Class<? extendsAnnotation> annotationClass)
Returns true if an annotation for the specified type ispresent on this element, else false.
default boolean
AnnotatedElement.isAnnotationPresent(Class<? extendsAnnotation> annotationClass)
Returns true if an annotation for the specified type ispresent on this element, else false.
static boolean
Proxy.isProxyClass(Class<?> cl)
Returns true if the given class is a proxy class.
staticObject
Array.newInstance(Class<?> componentType, int length)
Creates a new array with the specified component type and length.
staticObject
Array.newInstance(Class<?> componentType, int... dimensions)
Creates a new array with the specified component type and dimensions.
staticObject
Proxy.newProxyInstance(ClassLoader loader,Class<?>[] interfaces,InvocationHandler h)
Returns a proxy instance for the specified interfaces that dispatches method invocations to the specified invocation handler.
Uses ofClass injava.lang.runtime
Methods injava.lang.runtime with parameters of typeClass
Modifier and Type
Method
Description
staticObject
ObjectMethods.bootstrap(MethodHandles.Lookup lookup,String methodName,TypeDescriptor type,Class<?> recordClass,String names,MethodHandle... getters)
Bootstrap method to generate theObject.equals(Object),Object.hashCode(), andObject.toString() methods, based on a description of the component names and accessor methods, for eitherinvokedynamic call sites or dynamic constant pool entries.
Uses ofClass injava.net
Methods injava.net that returnClass
Modifier and Type
Method
Description
protectedClass<?>
URLClassLoader.findClass(String name)
Finds and loads the class with the specified name from the URL search path.
Class<T>
SocketOption.type()
Returns the type of the socket option value.
Methods injava.net with parameters of typeClass
Modifier and Type
Method
Description
Object
ContentHandler.getContent(URLConnection urlc,Class[] classes)
Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object that matches one of the types specified.
finalObject
URL.getContent(Class<?>[] classes)
Gets the contents of this URL.
Object
URLConnection.getContent(Class<?>[] classes)
Retrieves the contents of this URL connection.
Uses ofClass injava.nio.file
Methods injava.nio.file that returnClass
Modifier and Type
Method
Description
Class<T>
WatchEvent.Kind.type()
Returns the type of thecontext value.
Methods injava.nio.file with parameters of typeClass
Modifier and Type
Method
Description
static <V extendsFileAttributeView> V
Files.getFileAttributeView(Path path,Class<V> type,LinkOption... options)
Returns a file attribute view of a given type.
<V extendsFileAttributeView> V
SecureDirectoryStream.getFileAttributeView(Class<V> type)
Returns a new file attribute view to access the file attributes of this directory.
<V extendsFileAttributeView> V
SecureDirectoryStream.getFileAttributeView(T path,Class<V> type,LinkOption... options)
Returns a new file attribute view to access the file attributes of a file in this directory.
abstract <V extendsFileStoreAttributeView> V
FileStore.getFileStoreAttributeView(Class<V> type)
Returns aFileStoreAttributeView of the given type.
static <A extendsBasicFileAttributes> A
Files.readAttributes(Path path,Class<A> type,LinkOption... options)
Reads a file's attributes as a bulk operation.
abstract boolean
FileStore.supportsFileAttributeView(Class<? extendsFileAttributeView> type)
Tells whether or not this file store supports the file attributes identified by the given file attribute view.
Uses ofClass injava.nio.file.spi
Methods injava.nio.file.spi with parameters of typeClass
Modifier and Type
Method
Description
abstract <V extendsFileAttributeView> V
FileSystemProvider.getFileAttributeView(Path path,Class<V> type,LinkOption... options)
Returns a file attribute view of a given type.
abstract <A extendsBasicFileAttributes> A
FileSystemProvider.readAttributes(Path path,Class<A> type,LinkOption... options)
Reads a file's attributes as a bulk operation.
<A extendsBasicFileAttributes> A
FileSystemProvider.readAttributesIfExists(Path path,Class<A> type,LinkOption... options)
Reads a file's attributes as a bulk operation if it exists.
Uses ofClass injava.rmi.server
Methods injava.rmi.server that returnClass
Modifier and Type
Method
Description
Class<?>
LoaderHandler.loadClass(String name)
Deprecated.
no replacement
Class<?>
LoaderHandler.loadClass(URL codebase,String name)
Deprecated.
no replacement
staticClass<?>
RMIClassLoader.loadClass(String name)
Deprecated.
replaced byloadClass(String,String) method
staticClass<?>
RMIClassLoader.loadClass(String codebase,String name)
Loads a class from a codebase URL path.
staticClass<?>
RMIClassLoader.loadClass(String codebase,String name,ClassLoader defaultLoader)
Loads a class from a codebase URL path, optionally using the supplied loader.
staticClass<?>
RMIClassLoader.loadClass(URL codebase,String name)
Loads a class from a codebase URL.
abstractClass<?>
RMIClassLoaderSpi.loadClass(String codebase,String name,ClassLoader defaultLoader)
Provides the implementation forRMIClassLoader.loadClass(URL,String),RMIClassLoader.loadClass(String,String), andRMIClassLoader.loadClass(String,String,ClassLoader).
staticClass<?>
RMIClassLoader.loadProxyClass(String codebase,String[] interfaces,ClassLoader defaultLoader)
Loads a dynamic proxy class (seeProxy) that implements a set of interfaces with the given names from a codebase URL path.
abstractClass<?>
RMIClassLoaderSpi.loadProxyClass(String codebase,String[] interfaces,ClassLoader defaultLoader)
Provides the implementation forRMIClassLoader.loadProxyClass(String,String[],ClassLoader).
Methods injava.rmi.server with parameters of typeClass
Modifier and Type
Method
Description
staticString
RMIClassLoader.getClassAnnotation(Class<?> cl)
Returns the annotation string (representing a location for the class definition) that RMI will use to annotate the class descriptor when marshalling objects of the given class.
abstractString
RMIClassLoaderSpi.getClassAnnotation(Class<?> cl)
Provides the implementation forRMIClassLoader.getClassAnnotation(Class).
Uses ofClass injava.security
Methods injava.security that returnClass
Modifier and Type
Method
Description
protected finalClass<?>
SecureClassLoader.defineClass(String name, byte[] b, int off, int len,CodeSource cs)
Converts an array of bytes into an instance of classClass, with an optional CodeSource.
protected finalClass<?>
SecureClassLoader.defineClass(String name,ByteBuffer b,CodeSource cs)
Converts aByteBuffer into an instance of classClass, with an optional CodeSource.
Methods injava.security with parameters of typeClass
Modifier and Type
Method
Description
boolean
KeyStoreSpi.engineEntryInstanceOf(String alias,Class<? extendsKeyStore.Entry> entryClass)
Determines if the keystoreEntry for the specifiedalias is an instance or subclass of the specifiedentryClass.
protected abstract <T extendsKeySpec> T
KeyFactorySpi.engineGetKeySpec(Key key,Class<T> keySpec)
Returns a specification (key material) of the given key object.
protected abstract <T extendsAlgorithmParameterSpec> T
AlgorithmParametersSpi.engineGetParameterSpec(Class<T> paramSpec)
Returns a (transparent) specification of this parameters object.
final boolean
KeyStore.entryInstanceOf(String alias,Class<? extendsKeyStore.Entry> entryClass)
Determines if the keystoreEntry for the specifiedalias is an instance or subclass of the specifiedentryClass.
final <T extendsKeySpec> T
KeyFactory.getKeySpec(Key key,Class<T> keySpec)
Returns a specification (key material) of the given key object.
final <T extendsAlgorithmParameterSpec> T
AlgorithmParameters.getParameterSpec(Class<T> paramSpec)
Returns a (transparent) specification of this parameter object.
Uses ofClass injava.sql
Methods injava.sql that return types with arguments of typeClass
Modifier and Type
Method
Description
Map<String,Class<?>>
Connection.getTypeMap()
Retrieves theMap object associated with thisConnection object.
Methods injava.sql with parameters of typeClass
Modifier and Type
Method
Description
<T> T
CallableStatement.getObject(int parameterIndex,Class<T> type)
Returns an object representing the value of OUT parameterparameterIndex and will convert from the SQL type of the parameter to the requested Java data type, if the conversion is supported.
<T> T
CallableStatement.getObject(String parameterName,Class<T> type)
Returns an object representing the value of OUT parameterparameterName and will convert from the SQL type of the parameter to the requested Java data type, if the conversion is supported.
<T> T
ResultSet.getObject(int columnIndex,Class<T> type)
Retrieves the value of the designated column in the current row of thisResultSet object and will convert from the SQL type of the column to the requested Java data type, if the conversion is supported.
<T> T
ResultSet.getObject(String columnLabel,Class<T> type)
Retrieves the value of the designated column in the current row of thisResultSet object and will convert from the SQL type of the column to the requested Java data type, if the conversion is supported.
<T extendsSource> T
SQLXML.getSource(Class<T> sourceClass)
Returns a Source for reading the XML value designated by this SQLXML instance.
boolean
Wrapper.isWrapperFor(Class<?> iface)
Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
default <T> T
SQLInput.readObject(Class<T> type)
Reads the next attribute in the stream and returns it as anObject in the Java programming language.
<T extendsResult> T
SQLXML.setResult(Class<T> resultClass)
Returns a Result for setting the XML value designated by this SQLXML instance.
<T> T
Wrapper.unwrap(Class<T> iface)
Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.
Method parameters injava.sql with type arguments of typeClass
Modifier and Type
Method
Description
Object
Array.getArray(long index, int count,Map<String,Class<?>> map)
Retrieves a slice of the SQLARRAY value designated by thisArray object, beginning with the specifiedindex and containing up tocount successive elements of the SQL array.
Object
Array.getArray(Map<String,Class<?>> map)
Retrieves the contents of the SQLARRAY value designated by thisArray object.
Object[]
Struct.getAttributes(Map<String,Class<?>> map)
Produces the ordered values of the attributes of the SQL structured type that thisStruct object represents.
Object
CallableStatement.getObject(int parameterIndex,Map<String,Class<?>> map)
Returns an object representing the value of OUT parameterparameterIndex and usesmap for the custom mapping of the parameter value.
Object
CallableStatement.getObject(String parameterName,Map<String,Class<?>> map)
Returns an object representing the value of OUT parameterparameterName and usesmap for the custom mapping of the parameter value.
Object
Ref.getObject(Map<String,Class<?>> map)
Retrieves the referenced object and maps it to a Java type using the given type map.
Object
ResultSet.getObject(int columnIndex,Map<String,Class<?>> map)
Retrieves the value of the designated column in the current row of thisResultSet object as anObject in the Java programming language.
Object
ResultSet.getObject(String columnLabel,Map<String,Class<?>> map)
Retrieves the value of the designated column in the current row of thisResultSet object as anObject in the Java programming language.
ResultSet
Array.getResultSet(long index, int count,Map<String,Class<?>> map)
Retrieves a result set holding the elements of the subarray that starts at indexindex and contains up tocount successive elements.
ResultSet
Array.getResultSet(Map<String,Class<?>> map)
Retrieves a result set that contains the elements of the SQLARRAY value designated by thisArray object.
void
Connection.setTypeMap(Map<String,Class<?>> map)
Installs the givenTypeMap object as the type map for thisConnection object.
Uses ofClass injava.util
Methods injava.util that returnClass
Modifier and Type
Method
Description
Class<?>
IllegalFormatConversionException.getArgumentClass()
Returns the class of the mismatched argument.
Class<? extendsS>
ServiceLoader.Provider.type()
Returns the provider type.
Methods injava.util with parameters of typeClass
Modifier and Type
Method
Description
static <E extendsEnum<E>> EnumSet<E>
EnumSet.allOf(Class<E> elementType)
Creates an enum set containing all of the elements in the specified element type.
static <E> Collection<E>
Collections.checkedCollection(Collection<E> c,Class<E> type)
Returns a dynamically typesafe view of the specified collection.
static <E> List<E>
Collections.checkedList(List<E> list,Class<E> type)
Returns a dynamically typesafe view of the specified list.
static <K,V> Map<K,V>
Collections.checkedMap(Map<K,V> m,Class<K> keyType,Class<V> valueType)
Returns a dynamically typesafe view of the specified map.
static <K,V> NavigableMap<K,V>
Collections.checkedNavigableMap(NavigableMap<K,V> m,Class<K> keyType,Class<V> valueType)
Returns a dynamically typesafe view of the specified navigable map.
static <E> NavigableSet<E>
Collections.checkedNavigableSet(NavigableSet<E> s,Class<E> type)
Returns a dynamically typesafe view of the specified navigable set.
static <E> Queue<E>
Collections.checkedQueue(Queue<E> queue,Class<E> type)
Returns a dynamically typesafe view of the specified queue.
static <E> Set<E>
Collections.checkedSet(Set<E> s,Class<E> type)
Returns a dynamically typesafe view of the specified set.
static <K,V> SortedMap<K,V>
Collections.checkedSortedMap(SortedMap<K,V> m,Class<K> keyType,Class<V> valueType)
Returns a dynamically typesafe view of the specified sorted map.
static <E> SortedSet<E>
Collections.checkedSortedSet(SortedSet<E> s,Class<E> type)
Returns a dynamically typesafe view of the specified sorted set.
static <T,U> T[]
Arrays.copyOf(U[] original, int newLength,Class<? extends T[]> newType)
Copies the specified array, truncating or padding with nulls (if necessary) so the copy has the specified length.
static <T,U> T[]
Arrays.copyOfRange(U[] original, int from, int to,Class<? extends T[]> newType)
Copies the specified range of the specified array into a new array.
static <S> ServiceLoader<S>
ServiceLoader.load(Class<S> service)
Creates a new service loader for the given service type, using the current thread'scontext class loader.
static <S> ServiceLoader<S>
ServiceLoader.load(Class<S> service,ClassLoader loader)
Creates a new service loader for the given service.
static <S> ServiceLoader<S>
ServiceLoader.load(ModuleLayer layer,Class<S> service)
Creates a new service loader for the given service type to load service providers from modules in the given module layer and its ancestors.
static <S> ServiceLoader<S>
ServiceLoader.loadInstalled(Class<S> service)
Creates a new service loader for the given service type, using theplatform class loader.
static <E extendsEnum<E>> EnumSet<E>
EnumSet.noneOf(Class<E> elementType)
Creates an empty enum set with the specified element type.
Constructors injava.util with parameters of typeClass
Modifier
Constructor
Description

EnumMap(Class<K> keyType)
Creates an empty enum map with the specified key type.

IllegalFormatConversionException(char c,Class<?> arg)
Constructs an instance of this class with the mismatched conversion and the corresponding argument class.
Uses ofClass injava.util.concurrent.atomic
Methods injava.util.concurrent.atomic with parameters of typeClass
Modifier and Type
Method
Description
static AtomicIntegerFieldUpdater
AtomicIntegerFieldUpdater.newUpdater(Class tclass,String fieldName)
Creates and returns an updater for objects with the given field.
static AtomicLongFieldUpdater
AtomicLongFieldUpdater.newUpdater(Class tclass,String fieldName)
Creates and returns an updater for objects with the given field.
static <U,W> AtomicReferenceFieldUpdater<U,W>
AtomicReferenceFieldUpdater.newUpdater(Class tclass,Class<W> vclass,String fieldName)
Creates and returns an updater for objects with the given field.
Uses ofClass injava.util.prefs
Methods injava.util.prefs with parameters of typeClass
Modifier and Type
Method
Description
staticPreferences
Preferences.systemNodeForPackage(Class<?> c)
Returns the preference node from the system preference tree that is associated (by convention) with the specified class's package.
staticPreferences
Preferences.userNodeForPackage(Class<?> c)
Returns the preference node from the calling user's preference tree that is associated (by convention) with the specified class's package.
Uses ofClass injavax.annotation.processing
Methods injavax.annotation.processing with parameters of typeClass
Modifier and Type
Method
Description
Set<? extendsElement>
RoundEnvironment.getElementsAnnotatedWith(Class<? extendsAnnotation> a)
Returns the elements annotated with the given annotation interface.
Method parameters injavax.annotation.processing with type arguments of typeClass
Modifier and Type
Method
Description
defaultSet<? extendsElement>
RoundEnvironment.getElementsAnnotatedWithAny(Set<Class<? extendsAnnotation>> annotations)
Returns the elements annotated with one or more of the given annotation interfaces.
Uses ofClass injavax.crypto
Methods injavax.crypto with parameters of typeClass
Modifier and Type
Method
Description
protected abstractKeySpec
SecretKeyFactorySpi.engineGetKeySpec(SecretKey key,Class<?> keySpec)
Returns a specification (key material) of the given key object in the requested format.
finalKeySpec
SecretKeyFactory.getKeySpec(SecretKey key,Class<?> keySpec)
Returns a specification (key material) of the given key object in the requested format.
Uses ofClass injavax.imageio.metadata
Methods injavax.imageio.metadata that returnClass
Modifier and Type
Method
Description
Class<?>
IIOMetadataFormat.getObjectClass(String elementName)
Returns theClass type of theObject reference stored within the element.
Class<?>
IIOMetadataFormatImpl.getObjectClass(String elementName)

Methods injavax.imageio.metadata with parameters of typeClass
Modifier and Type
Method
Description
protected void
IIOMetadataFormatImpl.addObjectValue(String elementName,Class<?> classType, int arrayMinLength, int arrayMaxLength)
Allows anObject reference of a given class type to be stored in nodes implementing the named element.
protected <T> void
IIOMetadataFormatImpl.addObjectValue(String elementName,Class<T> classType, boolean required, T defaultValue)
Allows anObject reference of a given class type to be stored in nodes implementing the named element.
protected <T> void
IIOMetadataFormatImpl.addObjectValue(String elementName,Class<T> classType, boolean required, T defaultValue,List<? extends T> enumeratedValues)
Allows anObject reference of a given class type to be stored in nodes implementing the named element.
protected <T extendsObject &Comparable<? super T>> void
IIOMetadataFormatImpl.addObjectValue(String elementName,Class<T> classType, T defaultValue,Comparable<? super T> minValue,Comparable<? super T> maxValue, boolean minInclusive, boolean maxInclusive)
Allows anObject reference of a given class type to be stored in nodes implementing the named element.
Uses ofClass injavax.imageio.spi
Fields injavax.imageio.spi declared asClass
Modifier and Type
Field
Description
protectedClass<?>
ImageInputStreamSpi.inputClass
AClass object indicating the legal object type for use by thecreateInputStreamInstance method.
protectedClass<?>[]
ImageReaderSpi.inputTypes
An array ofClass objects to be returned fromgetInputTypes, initiallynull.
protectedClass<?>
ImageOutputStreamSpi.outputClass
AClass object indicating the legal object type for use by thecreateInputStreamInstance method.
protectedClass<?>[]
ImageWriterSpi.outputTypes
An array ofClass objects to be returned fromgetOutputTypes, initiallynull.
static finalClass<?>[]
ImageReaderSpi.STANDARD_INPUT_TYPE
Deprecated.
Instead of using this field, directly create the equivalent array{ ImageInputStream.class }.
static finalClass<?>[]
ImageWriterSpi.STANDARD_OUTPUT_TYPE
Deprecated.
Instead of using this field, directly create the equivalent array{ ImageOutputStream.class }.
Methods injavax.imageio.spi that returnClass
Modifier and Type
Method
Description
Class<?>
ImageInputStreamSpi.getInputClass()
Returns aClass object representing the class or interface type that must be implemented by an input source in order to be "wrapped" in anImageInputStream via thecreateInputStreamInstance method.
Class<?>[]
ImageReaderSpi.getInputTypes()
Returns an array ofClass objects indicating what types of objects may be used as arguments to the reader'ssetInput method.
Class<?>
ImageOutputStreamSpi.getOutputClass()
Returns aClass object representing the class or interface type that must be implemented by an output destination in order to be "wrapped" in anImageOutputStream via thecreateOutputStreamInstance method.
Class<?>[]
ImageWriterSpi.getOutputTypes()
Returns an array ofClass objects indicating what types of objects may be used as arguments to the writer'ssetOutput method.
Methods injavax.imageio.spi that return types with arguments of typeClass
Modifier and Type
Method
Description
Iterator<Class<?>>
ServiceRegistry.getCategories()
Returns anIterator ofClass objects indicating the current set of categories.
Methods injavax.imageio.spi with parameters of typeClass
Modifier and Type
Method
Description
void
ServiceRegistry.deregisterAll(Class<?> category)
Deregisters all service provider object currently registered under the given category.
<T> boolean
ServiceRegistry.deregisterServiceProvider(T provider,Class<T> category)
Removes a service provider object from the given category.
<T> T
ServiceRegistry.getServiceProviderByClass(Class<T> providerClass)
Returns the currently registered service provider object that is of the given class type.
<T> Iterator<T>
ServiceRegistry.getServiceProviders(Class<T> category, boolean useOrdering)
Returns anIterator containing all registered service providers in the given category.
<T> Iterator<T>
ServiceRegistry.getServiceProviders(Class<T> category,ServiceRegistry.Filter filter, boolean useOrdering)
Returns anIterator containing service provider objects within a given category that satisfy a criterion imposed by the suppliedServiceRegistry.Filter object'sfilter method.
static <T> Iterator<T>
ServiceRegistry.lookupProviders(Class<T> providerClass)
Locates and incrementally instantiates the available providers of a given service using the context class loader.
static <T> Iterator<T>
ServiceRegistry.lookupProviders(Class<T> providerClass,ClassLoader loader)
Searches for implementations of a particular service class using the given class loader.
void
IIOServiceProvider.onDeregistration(ServiceRegistry registry,Class<?> category)
A callback that will be whenever the Spi class has been deregistered from aServiceRegistry.
void
RegisterableService.onDeregistration(ServiceRegistry registry,Class<?> category)
Called when an object implementing this interface is removed from the givencategory of the givenregistry.
void
IIOServiceProvider.onRegistration(ServiceRegistry registry,Class<?> category)
A callback that will be called exactly once after the Spi class has been instantiated and registered in aServiceRegistry.
void
RegisterableService.onRegistration(ServiceRegistry registry,Class<?> category)
Called when an object implementing this interface is added to the givencategory of the givenregistry.
<T> boolean
ServiceRegistry.registerServiceProvider(T provider,Class<T> category)
Adds a service provider object to the registry.
<T> boolean
ServiceRegistry.setOrdering(Class<T> category, T firstProvider, T secondProvider)
Sets a pairwise ordering between two service provider objects within a given category.
<T> boolean
ServiceRegistry.unsetOrdering(Class<T> category, T firstProvider, T secondProvider)
Sets a pairwise ordering between two service provider objects within a given category.
Constructors injavax.imageio.spi with parameters of typeClass
Modifier
Constructor
Description

ImageInputStreamSpi(String vendorName,String version,Class<?> inputClass)
Constructs anImageInputStreamSpi with a given set of values.

ImageOutputStreamSpi(String vendorName,String version,Class<?> outputClass)
Constructs anImageOutputStreamSpi with a given set of values.

ImageReaderSpi(String vendorName,String version,String[] names,String[] suffixes,String[] MIMETypes,String readerClassName,Class<?>[] inputTypes,String[] writerSpiNames, boolean supportsStandardStreamMetadataFormat,String nativeStreamMetadataFormatName,String nativeStreamMetadataFormatClassName,String[] extraStreamMetadataFormatNames,String[] extraStreamMetadataFormatClassNames, boolean supportsStandardImageMetadataFormat,String nativeImageMetadataFormatName,String nativeImageMetadataFormatClassName,String[] extraImageMetadataFormatNames,String[] extraImageMetadataFormatClassNames)
Constructs anImageReaderSpi with a given set of values.

ImageWriterSpi(String vendorName,String version,String[] names,String[] suffixes,String[] MIMETypes,String writerClassName,Class<?>[] outputTypes,String[] readerSpiNames, boolean supportsStandardStreamMetadataFormat,String nativeStreamMetadataFormatName,String nativeStreamMetadataFormatClassName,String[] extraStreamMetadataFormatNames,String[] extraStreamMetadataFormatClassNames, boolean supportsStandardImageMetadataFormat,String nativeImageMetadataFormatName,String nativeImageMetadataFormatClassName,String[] extraImageMetadataFormatNames,String[] extraImageMetadataFormatClassNames)
Constructs anImageWriterSpi with a given set of values.
Constructor parameters injavax.imageio.spi with type arguments of typeClass
Modifier
Constructor
Description

ServiceRegistry(Iterator<Class<?>> categories)
Constructs aServiceRegistry instance with a set of categories taken from thecategories argument.
Uses ofClass injavax.lang.model
Methods injavax.lang.model with parameters of typeClass
Modifier and Type
Method
Description
<A extendsAnnotation> A
AnnotatedConstruct.getAnnotation(Class<A> annotationType)
Returns this construct's annotation of the specified type if such an annotation ispresent, elsenull.
<A extendsAnnotation> A[]
AnnotatedConstruct.getAnnotationsByType(Class<A> annotationType)
Returns annotations that areassociated with this construct.
Uses ofClass injavax.lang.model.element
Methods injavax.lang.model.element with parameters of typeClass
Modifier and Type
Method
Description
<A extendsAnnotation> A
Element.getAnnotation(Class<A> annotationType)
Returns this construct's annotation of the specified type if such an annotation ispresent, elsenull.
<A extendsAnnotation> A[]
Element.getAnnotationsByType(Class<A> annotationType)
Returns annotations that areassociated with this construct.
Uses ofClass injavax.lang.model.type
Methods injavax.lang.model.type with parameters of typeClass
Modifier and Type
Method
Description
<A extendsAnnotation> A
TypeMirror.getAnnotation(Class<A> annotationType)
Returns this construct's annotation of the specified type if such an annotation ispresent, elsenull.
<A extendsAnnotation> A[]
TypeMirror.getAnnotationsByType(Class<A> annotationType)
Returns annotations that areassociated with this construct.
Uses ofClass injavax.management
Methods injavax.management that returnClass
Modifier and Type
Method
Description
Class<?>
StandardMBean.getImplementationClass()
Get the class of the implementation of this Standard MBean (or MXBean).
finalClass<?>
StandardMBean.getMBeanInterface()
Get the Management Interface of this Standard MBean (or MXBean).
staticClass<?>
DefaultLoaderRepository.loadClass(String className)
Deprecated.
Go through the list of class loaders and try to load the requested class.
staticClass<?>
DefaultLoaderRepository.loadClassWithout(ClassLoader loader,String className)
Deprecated.
Go through the list of class loaders but exclude the given class loader, then try to load the requested class.
Methods injavax.management with parameters of typeClass
Modifier and Type
Method
Description
static boolean
JMX.isMXBeanInterface(Class<?> interfaceClass)
Test whether an interface is an MXBean interface.
static <T> T
JMX.newMBeanProxy(MBeanServerConnection connection,ObjectName objectName,Class<T> interfaceClass)
Make a proxy for a Standard MBean in a local or remote MBean Server.
static <T> T
JMX.newMBeanProxy(MBeanServerConnection connection,ObjectName objectName,Class<T> interfaceClass, boolean notificationEmitter)
Make a proxy for a Standard MBean in a local or remote MBean Server that may also support the methods ofNotificationEmitter.
static <T> T
JMX.newMXBeanProxy(MBeanServerConnection connection,ObjectName objectName,Class<T> interfaceClass)
Make a proxy for an MXBean in a local or remote MBean Server.
static <T> T
JMX.newMXBeanProxy(MBeanServerConnection connection,ObjectName objectName,Class<T> interfaceClass, boolean notificationEmitter)
Make a proxy for an MXBean in a local or remote MBean Server that may also support the methods ofNotificationEmitter.
static <T> T
MBeanServerInvocationHandler.newProxyInstance(MBeanServerConnection connection,ObjectName objectName,Class<T> interfaceClass, boolean notificationBroadcaster)
Return a proxy that implements the given interface by forwarding its methods through the given MBean server to the named MBean.
Constructors injavax.management with parameters of typeClass
Modifier
Constructor
Description
protected
StandardEmitterMBean(Class<?> mbeanInterface, boolean isMXBean,NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface, and where notifications are handled by the givenNotificationEmitter.
protected
StandardEmitterMBean(Class<?> mbeanInterface,NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface, and where notifications are handled by the givenNotificationEmitter.

StandardEmitterMBean(T implementation,Class<T> mbeanInterface, boolean isMXBean,NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface, with the given implementation and where notifications are handled by the given NotificationEmitter.

StandardEmitterMBean(T implementation,Class<T> mbeanInterface,NotificationEmitter emitter)
Make an MBean whose management interface is specified bymbeanInterface, with the given implementation and where notifications are handled by the givenNotificationEmitter.
protected
StandardMBean(Class<?> mbeanInterface)
Make a DynamicMBean out ofthis, using the specifiedmbeanInterface class.
protected
StandardMBean(Class<?> mbeanInterface, boolean isMXBean)
Make a DynamicMBean out ofthis, using the specifiedmbeanInterface class, and choosing whether the resulting MBean is an MXBean.

StandardMBean(T implementation,Class<T> mbeanInterface)
Make a DynamicMBean out of the objectimplementation, using the specifiedmbeanInterface class.

StandardMBean(T implementation,Class<T> mbeanInterface, boolean isMXBean)
Make a DynamicMBean out of the objectimplementation, using the specifiedmbeanInterface class, and choosing whether the resultant MBean is an MXBean.
Uses ofClass injavax.management.loading
Methods injavax.management.loading that returnClass
Modifier and Type
Method
Description
Class<?>
ClassLoaderRepository.loadClass(String className)
Load the given class name through the list of class loaders.
staticClass<?>
DefaultLoaderRepository.loadClass(String className)
Deprecated.
Go through the list of class loaders and try to load the requested class.
Class<?>
ClassLoaderRepository.loadClassBefore(ClassLoader stop,String className)
Load the given class name through the list of class loaders, stopping at the given one.
Class<?>
ClassLoaderRepository.loadClassWithout(ClassLoader exclude,String className)
Load the given class name through the list of class loaders, excluding the given one.
staticClass<?>
DefaultLoaderRepository.loadClassWithout(ClassLoader loader,String className)
Deprecated.
Go through the list of class loaders but exclude the given class loader, then try to load the requested class.
Uses ofClass injavax.management.openmbean
Methods injavax.management.openmbean with parameters of typeClass
Modifier and Type
Method
Description
static <T> ArrayType<T>
ArrayType.getPrimitiveArrayType(Class<T> arrayClass)
Create anArrayType instance in a type-safe manner.
Uses ofClass injavax.naming.spi
Methods injavax.naming.spi with parameters of typeClass
Modifier and Type
Method
Description
ResolveResult
Resolver.resolveToClass(String name,Class<? extendsContext> contextType)
Partially resolves a name.
ResolveResult
Resolver.resolveToClass(Name name,Class<? extendsContext> contextType)
Partially resolves a name.
Uses ofClass injavax.print
Methods injavax.print that returnClass
Modifier and Type
Method
Description
Class<?>[]
PrintService.getSupportedAttributeCategories()
Determines the printing attribute categories a client can specify when setting up a job for this print service.
Class<?>[]
AttributeException.getUnsupportedAttributes()
Returns the array of printing attribute classes for which the Print Service instance does not support the attribute at all, ornull if there are no such attributes.
Methods injavax.print with parameters of typeClass
Modifier and Type
Method
Description
<T extendsPrintServiceAttribute> T
PrintService.getAttribute(Class<T> category)
Gets the value of the single specified service attribute.
Object
PrintService.getDefaultAttributeValue(Class<? extendsAttribute> category)
Determines this print service's default printing attribute value in the given category.
Object
PrintService.getSupportedAttributeValues(Class<? extendsAttribute> category,DocFlavor flavor,AttributeSet attributes)
Determines the printing attribute values a client can specify in the given category when setting up a job for this print service.
boolean
PrintService.isAttributeCategorySupported(Class<? extendsAttribute> category)
Determines whether a client can specify the given printing attribute category when setting up a job for this print service.
Uses ofClass injavax.print.attribute
Methods injavax.print.attribute that returnClass
Modifier and Type
Method
Description
Class<? extendsAttribute>
Attribute.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value when it is added to an attribute set.
staticClass<?>
AttributeSetUtilities.verifyAttributeCategory(Object object,Class<?> interfaceName)
Verify that the given object is aClass that implements the given interface, which is assumed to be interfaceAttribute or a subinterface thereof.
Methods injavax.print.attribute with parameters of typeClass
Modifier and Type
Method
Description
boolean
AttributeSet.containsKey(Class<?> category)
Returnstrue if this attribute set contains an attribute for the specified category.
boolean
HashAttributeSet.containsKey(Class<?> category)
Returnstrue if this attribute set contains an attribute for the specified category.
Attribute
AttributeSet.get(Class<?> category)
Returns the attribute value which this attribute set contains in the given attribute category.
Attribute
HashAttributeSet.get(Class<?> category)
Returns the attribute value which this attribute set contains in the given attribute category.
boolean
AttributeSet.remove(Class<?> category)
Removes any attribute for this category from this attribute set if present.
boolean
HashAttributeSet.remove(Class<?> category)
Removes any attribute for this category from this attribute set if present.
staticClass<?>
AttributeSetUtilities.verifyAttributeCategory(Object object,Class<?> interfaceName)
Verify that the given object is aClass that implements the given interface, which is assumed to be interfaceAttribute or a subinterface thereof.
staticAttribute
AttributeSetUtilities.verifyAttributeValue(Object object,Class<?> interfaceName)
Verify that the given object is an instance of the given interface, which is assumed to be interfaceAttribute or a subinterface thereof.
static void
AttributeSetUtilities.verifyCategoryForValue(Class<?> category,Attribute attribute)
Verify that the given attribute category object is equal to the category of the given attribute value object.
Constructors injavax.print.attribute with parameters of typeClass
Modifier
Constructor
Description
protected
HashAttributeSet(Class<?> interfaceName)
Construct a new, empty attribute set, where the members of the attribute set are restricted to the given interface.
protected
HashAttributeSet(Attribute[] attributes,Class<?> interfaceName)
Construct a new attribute set, where the members of the attribute set are restricted to the given interface.
protected
HashAttributeSet(Attribute attribute,Class<?> interfaceName)
Construct a new attribute set, initially populated with the given attribute, where the members of the attribute set are restricted to the given interface.
protected
HashAttributeSet(AttributeSet attributes,Class<?> interfaceName)
Construct a new attribute set, initially populated with the values from the given set where the members of the attribute set are restricted to the given interface.
Uses ofClass injavax.print.attribute.standard
Methods injavax.print.attribute.standard that returnClass
Modifier and Type
Method
Description
finalClass<? extendsAttribute>
Chromaticity.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
ColorSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Compression.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Copies.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
CopiesSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
DateTimeAtCompleted.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
DateTimeAtCreation.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
DateTimeAtProcessing.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Destination.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
DialogOwner.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
DialogTypeSelection.getCategory()
Gets the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
DocumentName.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Fidelity.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Finishings.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobHoldUntil.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobImpressions.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobImpressionsCompleted.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobImpressionsSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobKOctets.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobKOctetsProcessed.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobKOctetsSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobMediaSheets.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobMediaSheetsCompleted.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobMediaSheetsSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobMessageFromOperator.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobName.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobOriginatingUserName.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobPriority.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobPrioritySupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobSheets.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobState.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobStateReason.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
JobStateReasons.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Media.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
MediaPrintableArea.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
MediaSize.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
MultipleDocumentHandling.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
NumberOfDocuments.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
NumberOfInterveningJobs.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
NumberUp.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
NumberUpSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
OrientationRequested.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
OutputBin.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
OutputDeviceAssigned.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PageRanges.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PagesPerMinute.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PagesPerMinuteColor.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PDLOverrideSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PresentationDirection.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterInfo.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterIsAcceptingJobs.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterLocation.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterMakeAndModel.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterMessageFromOperator.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterMoreInfo.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterMoreInfoManufacturer.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterName.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterResolution.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterState.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterStateReason.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterStateReasons.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrinterURI.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
PrintQuality.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
QueuedJobCount.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
ReferenceUriSchemesSupported.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
RequestingUserName.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Severity.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
SheetCollate.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
finalClass<? extendsAttribute>
Sides.getCategory()
Get the printing attribute class which is to be used as the "category" for this printing attribute value.
Uses ofClass injavax.script
Methods injavax.script with parameters of typeClass
Modifier and Type
Method
Description
<T> T
Invocable.getInterface(Class<T> clasz)
Returns an implementation of an interface using functions compiled in the interpreter.
<T> T
Invocable.getInterface(Object thiz,Class<T> clasz)
Returns an implementation of an interface using member functions of a scripting object compiled in the interpreter.
Uses ofClass injavax.security.auth
Methods injavax.security.auth with parameters of typeClass
Modifier and Type
Method
Description
<T extendsPrincipal> Set<T>
Subject.getPrincipals(Class<T> c)
Return aSet of Principals associated with thisSubject that are instances or subclasses of the specifiedClass.
<T> Set<T>
Subject.getPrivateCredentials(Class<T> c)
Return aSet of private credentials associated with thisSubject that are instances or subclasses of the specifiedClass.
<T> Set<T>
Subject.getPublicCredentials(Class<T> c)
Return aSet of public credentials associated with thisSubject that are instances or subclasses of the specifiedClass.
Uses ofClass injavax.sound.midi
Methods injavax.sound.midi that returnClass
Modifier and Type
Method
Description
Class<?>
SoundbankResource.getDataClass()
Obtains the class used by this sample to represent its data.
Constructors injavax.sound.midi with parameters of typeClass
Modifier
Constructor
Description
protected
Instrument(Soundbank soundbank,Patch patch,String name,Class<?> dataClass)
Constructs a new MIDI instrument from the specifiedPatch.
protected
SoundbankResource(Soundbank soundBank,String name,Class<?> dataClass)
Constructs a newSoundbankResource from the given sound bank and wavetable index.
Uses ofClass injavax.sound.sampled
Methods injavax.sound.sampled that returnClass
Modifier and Type
Method
Description
Class<?>
Line.Info.getLineClass()
Obtains the class of the line that thisLine.Info object describes.
Constructors injavax.sound.sampled with parameters of typeClass
Modifier
Constructor
Description

Info(Class<?> lineClass,AudioFormat format)
Constructs a data line's info object from the specified information, which includes a single audio format.

Info(Class<?> lineClass,AudioFormat[] formats, int minBufferSize, int maxBufferSize)
Constructs a data line's info object from the specified information, which includes a set of supported audio formats and a range for the buffer size.

Info(Class<?> lineClass,AudioFormat format, int bufferSize)
Constructs a data line's info object from the specified information, which includes a single audio format and a desired buffer size.

Info(Class<?> lineClass)
Constructs an info object that describes a line of the specified class.

Info(Class<?> lineClass,String name, boolean isSource)
Constructs a port's info object from the information given.
Uses ofClass injavax.sql
Methods injavax.sql that return types with arguments of typeClass
Modifier and Type
Method
Description
Map<String,Class<?>>
RowSet.getTypeMap()
Retrieves theMap object associated with thisRowSet object, which specifies the custom mapping of SQL user-defined types, if any.
Method parameters injavax.sql with type arguments of typeClass
Modifier and Type
Method
Description
void
RowSet.setTypeMap(Map<String,Class<?>> map)
Installs the givenjava.util.Map object as the default type map for thisRowSet object.
Uses ofClass injavax.sql.rowset
Methods injavax.sql.rowset that return types with arguments of typeClass
Modifier and Type
Method
Description
Map<String,Class<?>>
BaseRowSet.getTypeMap()
Retrieves the type map associated with theConnection object for thisRowSet object.
Methods injavax.sql.rowset with parameters of typeClass
Modifier and Type
Method
Description
boolean
RowSetMetaDataImpl.isWrapperFor(Class<?> interfaces)
Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
<T> T
RowSetMetaDataImpl.unwrap(Class<T> iface)
Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.
Method parameters injavax.sql.rowset with type arguments of typeClass
Modifier and Type
Method
Description
void
BaseRowSet.setTypeMap(Map<String,Class<?>> map)
Installs the givenjava.util.Map object as the type map associated with theConnection object for thisRowSet object.
Uses ofClass injavax.sql.rowset.serial
Method parameters injavax.sql.rowset.serial with type arguments of typeClass
Modifier and Type
Method
Description
Object
SerialArray.getArray(long index, int count,Map<String,Class<?>> map)
Returns a new array that is a copy of a slice of thisSerialArray object, starting with the element at the given index and containing the given number of consecutive elements.
Object
SerialArray.getArray(Map<String,Class<?>> map)
Returns a new array that is a copy of thisSerialArray object, using the given type map for the custom mapping of each element when the elements are SQL UDTs.
Object[]
SerialStruct.getAttributes(Map<String,Class<?>> map)
Retrieves the attributes for the SQL structured type that thisSerialStruct represents as an array ofObject values, using the given type map for custom mapping if appropriate.
Object
SerialRef.getObject(Map<String,Class<?>> map)
Returns anObject representing the SQL structured type to which thisSerialRef object refers.
ResultSet
SerialArray.getResultSet(long index, int count,Map<String,Class<?>> map)
Retrieves a result set holding the elements of the subarray that starts at Retrieves aResultSet object that contains a subarray of the elements in thisSerialArray object, starting at indexindex and containing up tocount successive elements.
ResultSet
SerialArray.getResultSet(Map<String,Class<?>> map)
Retrieves aResultSet object that contains all of the elements of the SQLARRAY value represented by thisSerialArray object.
Constructor parameters injavax.sql.rowset.serial with type arguments of typeClass
Modifier
Constructor
Description

SerialArray(Array array,Map<String,Class<?>> map)
Constructs a newSerialArray object from the givenArray object, using the given type map for the custom mapping of each element when the elements are SQL UDTs.

SerialStruct(SQLData in,Map<String,Class<?>> map)
Constructs aSerialStruct object from the givenSQLData object, using the given type map to custom map it to a class in the Java programming language.

SerialStruct(Struct in,Map<String,Class<?>> map)
Constructs aSerialStruct object from the givenStruct object, using the givenjava.util.Map object for custom mapping the SQL structured type or any of its attributes that are SQL structured types.

SQLInputImpl(Object[] attributes,Map<String,Class<?>> map)
Creates anSQLInputImpl object initialized with the given array of attributes and the given type map.
Uses ofClass injavax.swing
Methods injavax.swing that returnClass
Modifier and Type
Method
Description
Class<?>
JTable.getColumnClass(int column)
Returns the type of the column appearing in the view at column positioncolumn.
Class<? extendsComponentUI>
UIDefaults.getUIClass(String uiClassID)
Returns the L&F class that renders this component.
Class<? extendsComponentUI>
UIDefaults.getUIClass(String uiClassID,ClassLoader uiClassLoader)
The value ofget(uidClassID) must be theString name of a class that implements the correspondingComponentUI class.
Methods injavax.swing with parameters of typeClass
Modifier and Type
Method
Description
staticContainer
SwingUtilities.getAncestorOfClass(Class<?> c,Component comp)
Convenience method for searching abovecomp in the component hierarchy and returns the first object of classc it finds.
TableCellEditor
JTable.getDefaultEditor(Class<?> columnClass)
Returns the editor to be used when no editor has been set in aTableColumn.
TableCellRenderer
JTable.getDefaultRenderer(Class<?> columnClass)
Returns the cell renderer to be used when no renderer has been set in aTableColumn.
<T extendsEventListener> T[]
AbstractListModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
<T extendsEventListener> T[]
AbstractSpinnerModel.getListeners(Class<T> listenerType)
Return an array of all the listeners of the given type that were added to this model.
<T extendsEventListener> T[]
DefaultBoundedRangeModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
<T extendsEventListener> T[]
DefaultButtonModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
<T extendsEventListener> T[]
DefaultListSelectionModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
<T extendsEventListener> T[]
DefaultSingleSelectionModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
<T extendsEventListener> T[]
JComponent.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisJComponent.
<T extendsEventListener> T[]
Timer.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisTimer.
staticObject
LookAndFeel.makeIcon(Class<?> baseClass,String gifFile)
Creates and returns aUIDefault.LazyValue that loads an image.
void
JTable.setDefaultEditor(Class<?> columnClass,TableCellEditor editor)
Sets a default cell editor to be used if no editor has been set in aTableColumn.
void
JTable.setDefaultRenderer(Class<?> columnClass,TableCellRenderer renderer)
Sets a default cell renderer to be used if no renderer has been set in aTableColumn.
Uses ofClass injavax.swing.event
Methods injavax.swing.event with parameters of typeClass
Modifier and Type
Method
Description
<T extendsEventListener> void
EventListenerList.add(Class<T> t, T l)
Adds the listener as a listener of the specified type.
int
EventListenerList.getListenerCount(Class<?> t)
Returns the total number of listeners of the supplied type for this listener list.
<T extendsEventListener> T[]
EventListenerList.getListeners(Class<T> t)
Return an array of all the listeners of the given type.
<T extendsEventListener> void
EventListenerList.remove(Class<T> t, T l)
Removes the listener as a listener of the specified type.
Uses ofClass injavax.swing.plaf.synth
Methods injavax.swing.plaf.synth with parameters of typeClass
Modifier and Type
Method
Description
void
SynthLookAndFeel.load(InputStream input,Class<?> resourceBase)
Loads the set ofSynthStyles that will be used by thisSynthLookAndFeel.
Uses ofClass injavax.swing.table
Methods injavax.swing.table that returnClass
Modifier and Type
Method
Description
Class<?>
AbstractTableModel.getColumnClass(int columnIndex)
ReturnsObject.class regardless ofcolumnIndex.
Class<?>
TableModel.getColumnClass(int columnIndex)
Returns the most specific superclass for all the cell values in the column.
Methods injavax.swing.table with parameters of typeClass
Modifier and Type
Method
Description
<T extendsEventListener> T[]
AbstractTableModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon thisAbstractTableModel.
<T extendsEventListener> T[]
DefaultTableColumnModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
Uses ofClass injavax.swing.text
Methods injavax.swing.text that returnClass
Modifier and Type
Method
Description
Class<?>
DefaultFormatter.getValueClass()
Returns that class that is used to create new Objects.
Methods injavax.swing.text with parameters of typeClass
Modifier and Type
Method
Description
<T extendsEventListener> T[]
AbstractDocument.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this document.
<T extendsEventListener> T[]
DefaultCaret.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this caret.
<T extendsEventListener> T[]
StyleContext.NamedStyle.getListeners(Class<T> listenerType)
Return an array of all the listeners of the given type that were added to this model.
void
DefaultFormatter.setValueClass(Class<?> valueClass)
Sets that class that is used to create new Objects.
Uses ofClass injavax.swing.tree
Methods injavax.swing.tree with parameters of typeClass
Modifier and Type
Method
Description
<T extendsEventListener> T[]
DefaultTreeModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
<T extendsEventListener> T[]
DefaultTreeSelectionModel.getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered asFooListeners upon this model.
Uses ofClass injavax.tools
Methods injavax.tools with parameters of typeClass
Modifier and Type
Method
Description
<S> ServiceLoader<S>
ForwardingJavaFileManager.getServiceLoader(JavaFileManager.Location location,Class<S> service)

default <S> ServiceLoader<S>
JavaFileManager.getServiceLoader(JavaFileManager.Location location,Class<S> service)
Get a service loader for a specific service class from a given location.
DocumentationTool.DocumentationTask
DocumentationTool.getTask(Writer out,JavaFileManager fileManager,DiagnosticListener<? superJavaFileObject> diagnosticListener,Class<?> docletClass,Iterable<String> options,Iterable<? extendsJavaFileObject> compilationUnits)
Creates a future for a documentation task with the given components and arguments.
Uses ofClass injavax.xml.xpath
Methods injavax.xml.xpath with parameters of typeClass
Modifier and Type
Method
Description
default <T> T
XPath.evaluateExpression(String expression,Object item,Class<T> type)
Evaluate an XPath expression in the specified context and return the result with the type specified through theclass type
default <T> T
XPath.evaluateExpression(String expression,InputSource source,Class<T> type)
Evaluate an XPath expression in the context of the specifiedsource and return the result as specified.
default <T> T
XPathExpression.evaluateExpression(Object item,Class<T> type)
Evaluate the compiled XPath expression in the specified context, and return the result with the type specified through theclass type.
default <T> T
XPathExpression.evaluateExpression(InputSource source,Class<T> type)
Evaluate the compiled XPath expression in the specified context, and return the result with the type specified through theclass type
staticQName
XPathEvaluationResult.XPathResultType.getQNameType(Class<?> clsType)
Returns the QName type as specified inXPathConstants that corresponds to the specified class type.

Movatterモバイル変換

Uses of Classjava.lang.Class

Uses ofClass injava.awt

Uses ofClass injava.awt.datatransfer

Uses ofClass injava.awt.dnd

Uses ofClass injava.awt.image.renderable

Uses ofClass injava.beans

Uses ofClass injava.beans.beancontext

Uses ofClass injava.io

Uses ofClass injava.lang

Uses ofClass injava.lang.annotation

Uses ofClass injava.lang.classfilePREVIEW

Uses ofClass injava.lang.classfile.constantpoolPREVIEW

Uses ofClass injava.lang.constant

Uses ofClass injava.lang.foreign

Uses ofClass injava.lang.instrument

Uses ofClass injava.lang.invoke

Uses ofClass injava.lang.management

Uses ofClass injava.lang.reflect

Uses ofClass injava.lang.runtime

Uses ofClass injava.net

Uses ofClass injava.nio.file

Uses ofClass injava.nio.file.spi

Uses ofClass injava.rmi.server

Uses ofClass injava.security

Uses ofClass injava.sql

Uses ofClass injava.util

Uses ofClass injava.util.concurrent.atomic

Uses ofClass injava.util.prefs

Uses ofClass injavax.annotation.processing

Uses ofClass injavax.crypto

Uses ofClass injavax.imageio.metadata

Uses ofClass injavax.imageio.spi

Uses ofClass injavax.lang.model

Uses ofClass injavax.lang.model.element

Uses ofClass injavax.lang.model.type

Uses ofClass injavax.management

Uses ofClass injavax.management.loading

Uses ofClass injavax.management.openmbean

Uses ofClass injavax.naming.spi

Uses ofClass injavax.print

Uses ofClass injavax.print.attribute

Uses ofClass injavax.print.attribute.standard

Uses ofClass injavax.script

Uses ofClass injavax.security.auth

Uses ofClass injavax.sound.midi

Uses ofClass injavax.sound.sampled

Uses ofClass injavax.sql

Uses ofClass injavax.sql.rowset

Uses ofClass injavax.sql.rowset.serial

Uses ofClass injavax.swing

Uses ofClass injavax.swing.event

Uses ofClass injavax.swing.plaf.synth

Uses ofClass injavax.swing.table

Uses ofClass injavax.swing.text

Uses ofClass injavax.swing.tree

Uses ofClass injavax.tools

Uses ofClass injavax.xml.xpath

Uses of Class
java.lang.Class

Uses ofClass injava.lang.classfile^PREVIEW

Uses ofClass injava.lang.classfile.constantpool^PREVIEW