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

Methods

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 declared in class java.lang.Object

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

Methods

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.

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Compiler.html