Class ModuleLayerFromSingleClassLoaderDecorator

java.lang.Object

net.bytebuddy.dynamic.loading.ModuleLayerFromSingleClassLoaderDecorator

All Implemented Interfaces:

ClassLoaderDecorator

@Enhance
public class ModuleLayerFromSingleClassLoaderDecorator
extends Object
implements ClassLoaderDecorator

A simple implementation of a ClassLoaderDecorator that creates module layers for dynamically generated types using the Java Module System. The module information is resolved from a provided module-info class. Without such a class, the decoration is omitted.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ModuleLayerFromSingleClassLoaderDecorator.AbstractModuleFinder	An abstract implementation of a module finder that can locate specific modules.
static class	ModuleLayerFromSingleClassLoaderDecorator.AbstractModuleReader	An abstract implementation of a module reader that provides access to dynamically generated types.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.Configuration	A proxy for the java.lang.module.Configuration type.
static enum	ModuleLayerFromSingleClassLoaderDecorator.Factory	A factory for creating a single module from a module-info class file, if available.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.ModuleDescriptor	A proxy for the java.lang.module.ModuleDescriptor type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.ModuleFinder	A proxy for the java.lang.module.ModuleFinder type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.ModuleLayer	A proxy for the java.lang.ModuleLayer type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.ModuleLayerController	A proxy for the java.lang.ModuleLayer.Controller type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.Optional	A proxy for the java.util.Optional type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.Path	A proxy for the java.nio.file.Path type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.SimpleModuleFinder	A proxy for the dynamically generated SimpleModuleFinder type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.SimpleModuleReference	A proxy for the dynamically generated SimpleModuleReference type.
protected static interface	ModuleLayerFromSingleClassLoaderDecorator.Stream	A proxy for the java.util.stream.Stream type.

Nested classes/interfaces inherited from interface ClassLoaderDecorator

ClassLoaderDecorator.NoOp

Field Summary

Fields

Modifier and Type	Field	Description
private final ClassLoader	classLoader	The class loader to delegate to when types are not handled by the module layer.
private static final ModuleLayerFromSingleClassLoaderDecorator.Configuration	CONFIGURATION	A proxy for java.lang.module.Configuration.
private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleDescriptor	MODULE_DESCRIPTOR	A proxy for java.lang.module.ModuleDescriptor.
private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleFinder	MODULE_FINDER	A proxy for java.lang.module.ModuleFinder.
private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleLayer	MODULE_LAYER	A proxy for java.lang.ModuleLayer.
private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleLayerController	MODULE_LAYER_CONTROLLER	A proxy for java.lang.ModuleLayer.Controller.
private final Object	moduleLayer	The module layer containing the dynamically created module.
private final String	name	The name of the module within the module layer.
private static final ModuleLayerFromSingleClassLoaderDecorator.Optional	OPTIONAL	A proxy for java.util.Optional.
private final Set<String>	packages	The packages that are exported by the module.
private static final ModuleLayerFromSingleClassLoaderDecorator.Path	PATH	A proxy for java.nio.file.Path.
private static final ModuleLayerFromSingleClassLoaderDecorator.SimpleModuleFinder	SIMPLE_MODULE_FINDER	A proxy for the dynamically generated simple module finder class.
private static final ModuleLayerFromSingleClassLoaderDecorator.SimpleModuleReference	SIMPLE_MODULE_REFERENCE	A proxy for the dynamically generated simple module reference class.
private static final ModuleLayerFromSingleClassLoaderDecorator.Stream	STREAM	A proxy for java.util.stream.Stream.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ModuleLayerFromSingleClassLoaderDecorator(ClassLoader classLoader, Object moduleLayer, String name, Set<String> packages)	Creates a new module layer from module info decorator.

Method Summary

Modifier and Type	Method	Description
ClassLoader	apply(TypeDescription typeDescription)	Applies this decorator to resolve a class loader for the given type.
private static <T> T	doPrivileged(PrivilegedAction<T> action)	A proxy for java.security.AccessController#doPrivileged that is activated if available.
boolean	isSkipped(TypeDescription typeDescription)	Determines if a type should be skipped from class loader decoration.

Methods inherited from class Object

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

Field Details

MODULE_FINDER

private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleFinder MODULE_FINDER

A proxy for java.lang.module.ModuleFinder.

MODULE_DESCRIPTOR

private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleDescriptor MODULE_DESCRIPTOR

A proxy for java.lang.module.ModuleDescriptor.

MODULE_LAYER

private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleLayer MODULE_LAYER

A proxy for java.lang.ModuleLayer.

MODULE_LAYER_CONTROLLER

private static final ModuleLayerFromSingleClassLoaderDecorator.ModuleLayerController MODULE_LAYER_CONTROLLER

A proxy for java.lang.ModuleLayer.Controller.

CONFIGURATION

private static final ModuleLayerFromSingleClassLoaderDecorator.Configuration CONFIGURATION

A proxy for java.lang.module.Configuration.

OPTIONAL

private static final ModuleLayerFromSingleClassLoaderDecorator.Optional OPTIONAL

A proxy for java.util.Optional.

STREAM

private static final ModuleLayerFromSingleClassLoaderDecorator.Stream STREAM

A proxy for java.util.stream.Stream.

PATH

private static final ModuleLayerFromSingleClassLoaderDecorator.Path PATH

A proxy for java.nio.file.Path.

SIMPLE_MODULE_REFERENCE

private static final ModuleLayerFromSingleClassLoaderDecorator.SimpleModuleReference SIMPLE_MODULE_REFERENCE

A proxy for the dynamically generated simple module reference class.

SIMPLE_MODULE_FINDER

private static final ModuleLayerFromSingleClassLoaderDecorator.SimpleModuleFinder SIMPLE_MODULE_FINDER

A proxy for the dynamically generated simple module finder class.

classLoader

@MaybeNull
@ValueHandling(REVERSE_NULLABILITY)
private final ClassLoader classLoader

The class loader to delegate to when types are not handled by the module layer.

moduleLayer

private final Object moduleLayer

The module layer containing the dynamically created module.

name

private final String name

The name of the module within the module layer.

packages

private final Set<String> packages

The packages that are exported by the module.

Constructor Details

ModuleLayerFromSingleClassLoaderDecorator

protected ModuleLayerFromSingleClassLoaderDecorator(@MaybeNull
 ClassLoader classLoader,
 Object moduleLayer,
 String name,
 Set<String> packages)

Creates a new module layer from module info decorator.

Parameters:

classLoader - The class loader to delegate to when types are not handled by the module layer.

moduleLayer - The module layer containing the dynamically created module.

name - The name of the module within the module layer.

packages - The packages that are exported by the module.

Method Details

doPrivileged

@Enhance
private static <T> T doPrivileged(PrivilegedAction<T> action)

A proxy for java.security.AccessController#doPrivileged that is activated if available.

Type Parameters:

T - The type of the action's resolved value.

Parameters:

action - The action to execute from a privileged context.

Returns:

The action's resolved value.

isSkipped

public boolean isSkipped(TypeDescription typeDescription)

Determines if a type should be skipped from class loader decoration.

Specified by:

isSkipped in interface ClassLoaderDecorator

Parameters:

typeDescription - The type description to check.

Returns:

true if the type should be skipped from decoration.

apply

@MaybeNull
public ClassLoader apply(TypeDescription typeDescription)

Applies this decorator to resolve a class loader for the given type.

Specified by:

apply in interface ClassLoaderDecorator

Parameters:

typeDescription - The type description for which to resolve a class loader.

Returns:

The class loader to use for the given type or null for the bootstrap class loader.