Module java.base
Package java.lang

Class Compiler

  • @Deprecated(since="9",
            forRemoval=true)
public final class Compiler
extends Object
    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.
    The Compiler class is provided to support Java-to-native-code compilers and related services. By design, the Compiler 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

      Modifier and Type Method Description
      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.
      static boolean compileClass​(Class<?> clazz)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Compiles the specified class.
      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.
      static void disable()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Cause the Compiler to cease operation.
      static void enable()
      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 - If clazz is null

      • 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 - If string is null

      • 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, or null if no compiler is available
        Throws:
        NullPointerException - If any is null

      • 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.