public final class

Compiler

extends Object
java.lang.Object
   ↳ java.lang.Compiler

Class Overview

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.

When the Java Virtual Machine first starts, it determines if the system property java.compiler exists. (System properties are accessible through getProperty(String) and getProperty(String, String). If so, it is assumed to be the name of a library (with a platform-dependent exact location and type); loadLibrary(String) is called to load that library. If this loading succeeds, the function named java_lang_Compiler_start() in that library is called.

If no compiler is available, these methods do nothing.

Summary

Public Methods
static Object command(Object any)
Examines the argument type and its fields and perform some documented operation.
static boolean compileClass(Class<?> clazz)
Compiles the specified class.
static boolean compileClasses(String string)
Compiles all classes whose name matches the specified string.
static void disable()
Cause the Compiler to cease operation.
static void enable()
Cause the Compiler to resume operation.
[Expand]
Inherited Methods
From class java.lang.Object

Public Methods

public static Object command (Object any)

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

public static boolean compileClass (Class<?> clazz)

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

public static boolean compileClasses (String string)

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

public static void disable ()

Cause the Compiler to cease operation.

public static void enable ()

Cause the Compiler to resume operation.