Module java.base
Package java.lang.reflect

Class Field

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and TypeMethodDescription
      booleanequals​(Object obj)
      Compares thisField against the specified object.
      Objectget​(Object obj)
      Returns the value of the field represented by thisField, on the specified object.
      AnnotatedTypegetAnnotatedType()
      Returns an AnnotatedType object that represents the use of a type to specify the declared type of the field represented by this Field.
      <T extendsAnnotation>
      T      		getAnnotation​(Class<T> annotationClass)
      Returns this element's annotation for the specified type if such an annotation ispresent, else null.
      <T extendsAnnotation>
      T[]      		getAnnotationsByType​(Class<T> annotationClass)
      Returns annotations that areassociated with this element.
      booleangetBoolean​(Object obj)
      Gets the value of a static or instanceboolean field.
      bytegetByte​(Object obj)
      Gets the value of a static or instancebyte field.
      chargetChar​(Object obj)
      Gets the value of a static or instance field of typechar or of another primitive type convertible to typechar via a widening conversion.
      Class<?>getDeclaringClass()
      Returns theClass object representing the class or interface that declares the field represented by thisField object.
      doublegetDouble​(Object obj)
      Gets the value of a static or instance field of typedouble or of another primitive type convertible to typedouble via a widening conversion.
      floatgetFloat​(Object obj)
      Gets the value of a static or instance field of typefloat or of another primitive type convertible to typefloat via a widening conversion.
      TypegetGenericType()
      Returns aType object that represents the declared type for the field represented by thisField object.
      intgetInt​(Object obj)
      Gets the value of a static or instance field of typeint or of another primitive type convertible to typeint via a widening conversion.
      longgetLong​(Object obj)
      Gets the value of a static or instance field of typelong or of another primitive type convertible to typelong via a widening conversion.
      intgetModifiers()
      Returns the Java language modifiers for the field represented by thisField object, as an integer.
      StringgetName()
      Returns the name of the field represented by thisField object.
      shortgetShort​(Object obj)
      Gets the value of a static or instance field of typeshort or of another primitive type convertible to typeshort via a widening conversion.
      Class<?>getType()
      Returns aClass object that identifies the declared type for the field represented by thisField object.
      inthashCode()
      Returns a hashcode for thisField.
      booleanisEnumConstant()
      Returnstrue if this field represents an element of an enumerated type; returnsfalse otherwise.
      booleanisSynthetic()
      Returnstrue if this field is a synthetic field; returnsfalse otherwise.
      voidset​(Object obj,Object value)
      Sets the field represented by thisField object on the specified object argument to the specified new value.
      voidsetAccessible​(boolean flag)
      Set theaccessible flag for this reflected object to the indicated boolean value.
      voidsetBoolean​(Object obj, boolean z)
      Sets the value of a field as aboolean on the specified object.
      voidsetByte​(Object obj, byte b)
      Sets the value of a field as abyte on the specified object.
      voidsetChar​(Object obj, char c)
      Sets the value of a field as achar on the specified object.
      voidsetDouble​(Object obj, double d)
      Sets the value of a field as adouble on the specified object.
      voidsetFloat​(Object obj, float f)
      Sets the value of a field as afloat on the specified object.
      voidsetInt​(Object obj, int i)
      Sets the value of a field as anint on the specified object.
      voidsetLong​(Object obj, long l)
      Sets the value of a field as along on the specified object.
      voidsetShort​(Object obj, short s)
      Sets the value of a field as ashort on the specified object.
      StringtoGenericString()
      Returns a string describing thisField, including its generic type.
      StringtoString()
      Returns a string describing thisField.

    • Method Detail

      • setAccessible

        public void setAccessible​(boolean flag)
        Description copied from class: AccessibleObject
        Set theaccessible flag for this reflected object to the indicated boolean value. A value oftrue indicates that the reflected object should suppress checks for Java language access control when it is used. A value offalse indicates that the reflected object should enforce checks for Java language access control when it is used, with the variation noted in the class description.

        This method may be used by a caller in classC to enable access to amember ofdeclaring classD if any of the following hold:

        • C andD are in the same module.
        • The member ispublic andD ispublic in a package that the module containingDexports to at least the module containingC.
        • The member isprotectedstatic,D ispublic in a package that the module containingD exports to at least the module containingC, andC is a subclass ofD.
        • D is in a package that the module containingDopens to at least the module containingC. All packages in unnamed and open modules are open to all modules and so this method always succeeds whenD is in an unnamed or open module.

        This method cannot be used to enable access to private members, members with default (package) access, protected instance members, or protected constructors when the declaring class is in a different module to the caller and the package containing the declaring class is not open to the caller's module.

        If there is a security manager, itscheckPermission method is first called with aReflectPermission("suppressAccessChecks") permission.

        Overrides:
        setAccessible in class AccessibleObject
        Parameters:
        flag - the new value for theaccessible flag
        Throws:
        InaccessibleObjectException - if access cannot be enabled
        SecurityException - if the request is denied by the security manager
        See Also:
        AccessibleObject.trySetAccessible(),MethodHandles.privateLookupIn(java.lang.Class<?>, java.lang.invoke.MethodHandles.Lookup)

      • getDeclaringClass

        public Class<?> getDeclaringClass()
        Returns theClass object representing the class or interface that declares the field represented by thisField object.
        Specified by:
        getDeclaringClass in interface Member
        Returns:
        an object representing the declaring class of the underlying member

      • getName

        public String getName()
        Returns the name of the field represented by thisField object.
        Specified by:
        getName in interface Member
        Returns:
        the simple name of the underlying member

      • getModifiers

        public int getModifiers()
        Returns the Java language modifiers for the field represented by thisField object, as an integer. TheModifier class should be used to decode the modifiers.
        Specified by:
        getModifiers in interface Member
        Returns:
        the Java language modifiers for the underlying member
        See Also:
        Modifier

      • isEnumConstant

        public boolean isEnumConstant()
        Returnstrue if this field represents an element of an enumerated type; returnsfalse otherwise.
        Returns:
        true if and only if this field represents an element of an enumerated type.
        Since:
        1.5

      • isSynthetic

        public boolean isSynthetic()
        Returnstrue if this field is a synthetic field; returnsfalse otherwise.
        Specified by:
        isSynthetic in interface Member
        Returns:
        true if and only if this field is a synthetic field as defined by the Java Language Specification.
        Since:
        1.5

      • getType

        public Class<?> getType()
        Returns aClass object that identifies the declared type for the field represented by thisField object.
        Returns:
        aClass object identifying the declared type of the field represented by this object

      • getGenericType

        public Type getGenericType()
        Returns aType object that represents the declared type for the field represented by thisField object.

        If theType is a parameterized type, theType object returned must accurately reflect the actual type parameters used in the source code.

        If the type of the underlying field is a type variable or a parameterized type, it is created. Otherwise, it is resolved.

        Returns:
        aType object that represents the declared type for the field represented by thisField object
        Throws:
        GenericSignatureFormatError - if the generic field signature does not conform to the format specified inThe Java™ Virtual Machine Specification
        TypeNotPresentException - if the generic type signature of the underlying field refers to a non-existent type declaration
        MalformedParameterizedTypeException - if the generic signature of the underlying field refers to a parameterized type that cannot be instantiated for any reason
        Since:
        1.5

      • equals

        public boolean equals​(Object obj)
        Compares thisField against the specified object. Returns true if the objects are the same. TwoField objects are the same if they were declared by the same class and have the same name and type.
        Overrides:
        equals in class Object
        Parameters:
        obj - the reference object with which to compare.
        Returns:
        true if this object is the same as the obj argument;false otherwise.
        See Also:
        Object.hashCode(),HashMap

      • toString

        public String toString()
        Returns a string describing thisField. The format is the access modifiers for the field, if any, followed by the field type, followed by a space, followed by the fully-qualified name of the class declaring the field, followed by a period, followed by the name of the field. For example:
            public static final int java.lang.Thread.MIN_PRIORITY    private int java.io.FileDescriptor.fd

        The modifiers are placed in canonical order as specified by "The Java Language Specification". This ispublic,protected orprivate first, and then other modifiers in the following order:static,final,transient,volatile.

        Overrides:
        toString in class Object
        Returns:
        a string describing thisField
        SeeThe Java™ Language Specification:
        8.3.1 Field Modifiers

      • toGenericString

        public String toGenericString()
        Returns a string describing thisField, including its generic type. The format is the access modifiers for the field, if any, followed by the generic field type, followed by a space, followed by the fully-qualified name of the class declaring the field, followed by a period, followed by the name of the field.

        The modifiers are placed in canonical order as specified by "The Java Language Specification". This ispublic,protected orprivate first, and then other modifiers in the following order:static,final,transient,volatile.

        Returns:
        a string describing thisField, including its generic type
        Since:
        1.5
        SeeThe Java™ Language Specification:
        8.3.1 Field Modifiers

      • get

        public Object get​(Object obj)           throwsIllegalArgumentException,IllegalAccessException
        Returns the value of the field represented by thisField, on the specified object. The value is automatically wrapped in an object if it has a primitive type.

        The underlying field's value is obtained as follows:

        If the underlying field is a static field, theobj argument is ignored; it may be null.

        Otherwise, the underlying field is an instance field. If the specifiedobj argument is null, the method throws aNullPointerException. If the specified object is not an instance of the class or interface declaring the underlying field, the method throws anIllegalArgumentException.

        If thisField object is enforcing Java language access control, and the underlying field is inaccessible, the method throws anIllegalAccessException. If the underlying field is static, the class that declared the field is initialized if it has not already been initialized.

        Otherwise, the value is retrieved from the underlying instance or static field. If the field has a primitive type, the value is wrapped in an object before being returned, otherwise it is returned as is.

        If the field is hidden in the type ofobj, the field's value is obtained according to the preceding rules.

        Parameters:
        obj - object from which the represented field's value is to be extracted
        Returns:
        the value of the represented field in objectobj; primitive values are wrapped in an appropriate object before being returned
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof).
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.

      • getBoolean

        public boolean getBoolean​(Object obj)                   throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instanceboolean field.
        Parameters:
        obj - the object to extract theboolean value from
        Returns:
        the value of theboolean field
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typeboolean by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • getChar

        public char getChar​(Object obj)             throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instance field of typechar or of another primitive type convertible to typechar via a widening conversion.
        Parameters:
        obj - the object to extract thechar value from
        Returns:
        the value of the field converted to typechar
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typechar by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • getShort

        public short getShort​(Object obj)               throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instance field of typeshort or of another primitive type convertible to typeshort via a widening conversion.
        Parameters:
        obj - the object to extract theshort value from
        Returns:
        the value of the field converted to typeshort
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typeshort by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • getInt

        public int getInt​(Object obj)           throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instance field of typeint or of another primitive type convertible to typeint via a widening conversion.
        Parameters:
        obj - the object to extract theint value from
        Returns:
        the value of the field converted to typeint
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typeint by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • getLong

        public long getLong​(Object obj)             throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instance field of typelong or of another primitive type convertible to typelong via a widening conversion.
        Parameters:
        obj - the object to extract thelong value from
        Returns:
        the value of the field converted to typelong
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typelong by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • getFloat

        public float getFloat​(Object obj)               throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instance field of typefloat or of another primitive type convertible to typefloat via a widening conversion.
        Parameters:
        obj - the object to extract thefloat value from
        Returns:
        the value of the field converted to typefloat
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typefloat by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • getDouble

        public double getDouble​(Object obj)                 throwsIllegalArgumentException,IllegalAccessException
        Gets the value of a static or instance field of typedouble or of another primitive type convertible to typedouble via a widening conversion.
        Parameters:
        obj - the object to extract thedouble value from
        Returns:
        the value of the field converted to typedouble
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is inaccessible.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if the field value cannot be converted to the typedouble by a widening conversion.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        get(java.lang.Object)

      • set

        public void set​(Object obj,Object value)         throwsIllegalArgumentException,IllegalAccessException
        Sets the field represented by thisField object on the specified object argument to the specified new value. The new value is automatically unwrapped if the underlying field has a primitive type.

        The operation proceeds as follows:

        If the underlying field is static, theobj argument is ignored; it may be null.

        Otherwise the underlying field is an instance field. If the specified object argument is null, the method throws aNullPointerException. If the specified object argument is not an instance of the class or interface declaring the underlying field, the method throws anIllegalArgumentException.

        If thisField object is enforcing Java language access control, and the underlying field is inaccessible, the method throws anIllegalAccessException.

        If the underlying field is final, the method throws anIllegalAccessException unlesssetAccessible(true) has succeeded for thisField object and the field is non-static. Setting a final field in this way is meaningful only during deserialization or reconstruction of instances of classes with blank final fields, before they are made available for access by other parts of a program. Use in any other context may have unpredictable effects, including cases in which other parts of a program continue to use the original value of this field.

        If the underlying field is of a primitive type, an unwrapping conversion is attempted to convert the new value to a value of a primitive type. If this attempt fails, the method throws anIllegalArgumentException.

        If, after possible unwrapping, the new value cannot be converted to the type of the underlying field by an identity or widening conversion, the method throws anIllegalArgumentException.

        If the underlying field is static, the class that declared the field is initialized if it has not already been initialized.

        The field is set to the possibly unwrapped and widened new value.

        If the field is hidden in the type ofobj, the field's value is set according to the preceding rules.

        Parameters:
        obj - the object whose field should be modified
        value - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.

      • setBoolean

        public void setBoolean​(Object obj,                       boolean z)                throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as aboolean on the specified object. This method is equivalent toset(obj, zObj), wherezObj is aBoolean object andzObj.booleanValue() == z.
        Parameters:
        obj - the object whose field should be modified
        z - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setByte

        public void setByte​(Object obj,                    byte b)             throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as abyte on the specified object. This method is equivalent toset(obj, bObj), wherebObj is aByte object andbObj.byteValue() == b.
        Parameters:
        obj - the object whose field should be modified
        b - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setChar

        public void setChar​(Object obj,                    char c)             throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as achar on the specified object. This method is equivalent toset(obj, cObj), wherecObj is aCharacter object andcObj.charValue() == c.
        Parameters:
        obj - the object whose field should be modified
        c - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setShort

        public void setShort​(Object obj,                     short s)              throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as ashort on the specified object. This method is equivalent toset(obj, sObj), wheresObj is aShort object andsObj.shortValue() == s.
        Parameters:
        obj - the object whose field should be modified
        s - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setInt

        public void setInt​(Object obj,                   int i)            throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as anint on the specified object. This method is equivalent toset(obj, iObj), whereiObj is anInteger object andiObj.intValue() == i.
        Parameters:
        obj - the object whose field should be modified
        i - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setLong

        public void setLong​(Object obj,                    long l)             throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as along on the specified object. This method is equivalent toset(obj, lObj), wherelObj is aLong object andlObj.longValue() == l.
        Parameters:
        obj - the object whose field should be modified
        l - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setFloat

        public void setFloat​(Object obj,                     float f)              throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as afloat on the specified object. This method is equivalent toset(obj, fObj), wherefObj is aFloat object andfObj.floatValue() == f.
        Parameters:
        obj - the object whose field should be modified
        f - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • setDouble

        public void setDouble​(Object obj,                      double d)               throwsIllegalArgumentException,IllegalAccessException
        Sets the value of a field as adouble on the specified object. This method is equivalent toset(obj, dObj), wheredObj is aDouble object anddObj.doubleValue() == d.
        Parameters:
        obj - the object whose field should be modified
        d - the new value for the field ofobj being modified
        Throws:
        IllegalAccessException - if thisField object is enforcing Java language access control and the underlying field is either inaccessible or final.
        IllegalArgumentException - if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof), or if an unwrapping conversion fails.
        NullPointerException - if the specified object is null and the field is an instance field.
        ExceptionInInitializerError - if the initialization provoked by this method fails.
        See Also:
        set(java.lang.Object, java.lang.Object)

      • getAnnotation

        public <T extendsAnnotation> T getAnnotation​(Class<T> annotationClass)
        Description copied from interface: AnnotatedElement
        Returns this element's annotation for the specified type if such an annotation ispresent, else null.
        Specified by:
        getAnnotation in interface AnnotatedElement
        Overrides:
        getAnnotation in class AccessibleObject
        Type Parameters:
        T - the type of the annotation to query for and return if present
        Parameters:
        annotationClass - the Class object corresponding to the annotation type
        Returns:
        this element's annotation for the specified annotation type if present on this element, else null
        Throws:
        NullPointerException - if the given annotation class is null
        Since:
        1.5

      • getAnnotationsByType

        public <T extendsAnnotation> T[] getAnnotationsByType​(Class<T> annotationClass)
        Returns annotations that areassociated with this element. If there are no annotationsassociated with this element, the return value is an array of length 0. The difference between this method andAnnotatedElement.getAnnotation(Class) is that this method detects if its argument is arepeatable annotation type (JLS 9.6), and if so, attempts to find one or more annotations of that type by "looking through" a container annotation. The caller of this method is free to modify the returned array; it will have no effect on the arrays returned to other callers.
        Specified by:
        getAnnotationsByType in interface AnnotatedElement
        Overrides:
        getAnnotationsByType in class AccessibleObject
        Type Parameters:
        T - the type of the annotation to query for and return if present
        Parameters:
        annotationClass - the Class object corresponding to the annotation type
        Returns:
        all this element's annotations for the specified annotation type if associated with this element, else an array of length zero
        Throws:
        NullPointerException - if the given annotation class is null
        Since:
        1.8

      • getAnnotatedType

        public AnnotatedType getAnnotatedType()
        Returns an AnnotatedType object that represents the use of a type to specify the declared type of the field represented by this Field.
        Returns:
        an object representing the declared type of the field represented by this Field
        Since:
        1.8