org.apache.catalina.loader

Class WebappClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.apache.catalina.loader.WebappClassLoaderBase

org.apache.catalina.loader.WebappClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable, Lifecycle, WebappProperties, InstrumentableClassLoader

public class WebappClassLoader
extends WebappClassLoaderBase

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.catalina.loader.WebappClassLoaderBase

WebappClassLoaderBase.PrivilegedFindClassByName, WebappClassLoaderBase.PrivilegedGetClassLoader

Nested classes/interfaces inherited from interface org.apache.catalina.Lifecycle

Lifecycle.SingleUse

Field Summary

Fields inherited from class org.apache.catalina.loader.WebappClassLoaderBase

delegate, loaderPC, parent, permissionList, resourceEntries, resources, securityManager, sm

Fields inherited from interface org.apache.catalina.Lifecycle

AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT

Constructor Summary

Constructors

Constructor and Description
WebappClassLoader()
WebappClassLoader(ClassLoader parent)

Method Summary

Modifier and Type	Method and Description
WebappClassLoader	copyWithoutTransformers() Returns a copy of this class loader without any class file transformers.
protected Object	getClassLoadingLock(String className) This class loader is not parallel capable so lock on the class loader rather than a per-class lock.

Methods inherited from class org.apache.catalina.loader.WebappClassLoaderBase

addLifecycleListener, addTransformer, addURL, checkStateForClassLoading, checkStateForResourceLoading, clearReferences, copyStateWithoutTransformers, destroy, doDefineClass, filter, findClass, findClassInternal, findLifecycleListeners, findLoadedClass0, findResource, findResources, getClearReferencesHttpClientKeepAliveThread, getClearReferencesLogFactoryRelease, getClearReferencesRmiTargets, getClearReferencesStopThreads, getClearReferencesStopTimerThreads, getContextName, getDelegate, getHostName, getJavaseClassLoader, getPermissions, getResource, getResourceAsStream, getResources, getServiceName, getState, getStateName, getURLs, getWebappName, init, isPackageSealed, loadClass, loadClass, modified, refreshPolicy, removeLifecycleListener, removeTransformer, setClearReferencesHttpClientKeepAliveThread, setClearReferencesLogFactoryRelease, setClearReferencesRmiTargets, setClearReferencesStopThreads, setClearReferencesStopTimerThreads, setDelegate, setJavaseClassLoader, setResources, start, stop, toString

Methods inherited from class java.net.URLClassLoader

close, definePackage, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

WebappClassLoader

public WebappClassLoader()

WebappClassLoader

public WebappClassLoader(ClassLoader parent)

Method Detail

copyWithoutTransformers

public WebappClassLoader copyWithoutTransformers()

Returns a copy of this class loader without any class file transformers. This is a tool often used by Java Persistence API providers to inspect entity classes in the absence of any instrumentation, something that can't be guaranteed within the context of a ClassFileTransformer's transform method.

The returned class loader's resource cache will have been cleared so that classes already instrumented will not be retained or returned.

Returns:

the transformer-free copy of this class loader.

getClassLoadingLock

protected Object getClassLoadingLock(String className)

This class loader is not parallel capable so lock on the class loader rather than a per-class lock.

Overrides:

getClassLoadingLock in class ClassLoader