Module java.base
Package java.lang

Class Compiler

java.lang.Object
java.lang.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
    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
    Deprecated, for removal: This API element is subject to removal in a future version.
    Cause the Compiler to cease operation.
    static void
    Deprecated, for removal: This API element is subject to removal in a future version.
    Cause the Compiler to resume operation.

    Methods declared in class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Method Details

    • 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.