Module java.base

Package java.lang

Class Compiler

java.lang.Object

java.lang.Compiler

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.

@Deprecated(since="9",
            forRemoval=true)
public final class Compiler
extends Object

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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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.