Package eu.cloudnetservice.driver.util.define

Class FallbackClassDefiner

java.lang.Object

eu.cloudnetservice.driver.util.define.FallbackClassDefiner

All Implemented Interfaces:

ClassDefiner

@Internal
final class FallbackClassDefiner
extends Object
implements ClassDefiner

A class definer which defines classes using a class loader. This is a fallback method which will not work as expected on modern jvm implementations which have higher access check requirements. In normal cases this definer should never get used as the LookupClassDefiner should define classes.

Since:

4.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	FallbackClassDefiner.DefiningClassLoader	A class loader which gives access to the normally protected defineClass method.

Field Summary

Fields

Modifier and Type	Field	Description
private final com.github.benmanes.caffeine.cache.LoadingCache<ClassLoader,FallbackClassDefiner.DefiningClassLoader>	cache	The cached defining class loaders for each class loader of the parent classes to define the class in.

Constructor Summary

Constructors

Constructor	Description
FallbackClassDefiner()

Method Summary

Modifier and Type	Method	Description
@NonNull Class<?>	defineClass(@NonNull String name, @NonNull Class<?> parent, byte[] bytecode)	Defines the given class bytecode and return the constructed class object.

Methods inherited from class java.lang.Object

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

Field Details

cache

private final com.github.benmanes.caffeine.cache.LoadingCache<ClassLoader,FallbackClassDefiner.DefiningClassLoader> cache

The cached defining class loaders for each class loader of the parent classes to define the class in.

Constructor Details

FallbackClassDefiner

FallbackClassDefiner()

Method Details

defineClass

@NonNull
public @NonNull Class<?> defineClass(@NonNull
 @NonNull String name,
 @NonNull
 @NonNull Class<?> parent,
 byte[] bytecode)

Defines the given class bytecode and return the constructed class object.

Specified by:

defineClass in interface ClassDefiner

Parameters:

name - the name of the class to construct.

parent - the parent class of this class as we are assuming to define an anonymous class.

bytecode - the bytecode of the class to define.

Returns:

the constructed class object from the given bytecode.