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 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

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.

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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/17/docs/api/java.base/java/lang/Compiler.html