net.lenni0451.classtransform.utils

Class HotswapClassLoader

java.lang.Object

java.lang.ClassLoader

net.lenni0451.classtransform.utils.HotswapClassLoader

public class HotswapClassLoader
extends java.lang.ClassLoader

Internal class loader required for transformer hotswapping.
Fake classes with the same name as the transformer classes are loaded from this class loader.
This causes the JVM to pass the changed transformer bytecode into the instrumentation ClassFileTransformer which the reapplies the transformer to the unmodified class bytecode.

Constructor Summary

Constructors

Constructor and Description
HotswapClassLoader(IClassProvider classProvider, ILogger logger)

Method Summary

Modifier and Type	Method and Description
void	defineHotswapClass(java.lang.String name) Define a fake class in this class loader.
byte[]	getHotswapClass(java.lang.String name) Get the bytecode of a fake class.

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

HotswapClassLoader

public HotswapClassLoader(IClassProvider classProvider,
                          ILogger logger)

Method Detail

getHotswapClass

public byte[] getHotswapClass(java.lang.String name)

Get the bytecode of a fake class.
This fake class only contains a constructor.

Parameters:

name - The name of the class

Returns:

The bytecode of the class

defineHotswapClass

public void defineHotswapClass(java.lang.String name)

Define a fake class in this class loader.

Parameters:

name - The name of the class