Module java.base
Package java.lang

Class Compiler

  • @Deprecated(since="9",forRemoval=true)public final classCompilerextendsObject
    Deprecated, for removal: This API element is subject to removal in a future version.
    JIT compilers and their technologies vary too widely to be controlled effectively by a standardized interface. As such, many JIT compiler implementations ignore this interface, and are instead controllable by implementation-specific mechanisms such as command-line options. This class is subject to removal in a future version of Java SE.
    TheCompiler class is provided to support Java-to-native-code compilers and related services. By design, theCompiler class does nothing; it serves as a placeholder for a JIT compiler implementation. If no compiler is available, these methods do nothing.
    Since:
    1.0

    • Method Summary

      All Methods Static Methods Concrete Methods Deprecated Methods 
      Modifier and TypeMethodDescription
      staticObjectcommand​(Object any)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Examines the argument type and its fields and perform some documented operation.
      static booleancompileClass​(Class<?> clazz)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Compiles the specified class.
      static booleancompileClasses​(String string)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Compiles all classes whose name matches the specified string.
      static voiddisable()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Cause the Compiler to cease operation.
      static voidenable()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Cause the Compiler to resume operation.

    • Method Detail

      • compileClass

        public static boolean compileClass​(Class<?> clazz)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Compiles the specified class.
        Parameters:
        clazz - A class
        Returns:
        true if the compilation succeeded;false if the compilation failed or no compiler is available
        Throws:
        NullPointerException - Ifclazz isnull

      • compileClasses

        public static boolean compileClasses​(String string)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Compiles all classes whose name matches the specified string.
        Parameters:
        string - The name of the classes to compile
        Returns:
        true if the compilation succeeded;false if the compilation failed or no compiler is available
        Throws:
        NullPointerException - Ifstring isnull

      • command

        public static Object command​(Object any)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Examines the argument type and its fields and perform some documented operation. No specific operations are required.
        Parameters:
        any - An argument
        Returns:
        A compiler-specific value, ornull if no compiler is available
        Throws:
        NullPointerException - Ifany isnull

      • enable

        public static void enable()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Cause the Compiler to resume operation.

      • disable

        public static void disable()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Cause the Compiler to cease operation.