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

Standard web application class loader. Not parallel capable.

Nested Class Summary

Nested classes/interfaces inherited from class WebappClassLoaderBase

WebappClassLoaderBase.PrivilegedFindClassByName, WebappClassLoaderBase.PrivilegedGetClassLoader, WebappClassLoaderBase.PrivilegedJavaseGetResource

Nested classes/interfaces inherited from interface Lifecycle

Lifecycle.SingleUse

Field Summary

Fields inherited from class WebappClassLoaderBase

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

Fields inherited from interface 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	Description
WebappClassLoader()	Constructs a new WebappClassLoader.
WebappClassLoader(ClassLoader parent)	Constructs a new WebappClassLoader with the specified parent class loader.

Method Summary

Modifier and Type	Method	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 WebappClassLoaderBase

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

Methods inherited from class URLClassLoader

close, definePackage, newInstance, newInstance

Methods inherited from class SecureClassLoader

defineClass, defineClass

Methods inherited from class ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class Object

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

Constructor Details

WebappClassLoader

public WebappClassLoader()

Constructs a new WebappClassLoader.

WebappClassLoader

public WebappClassLoader(ClassLoader parent)

Constructs a new WebappClassLoader with the specified parent class loader.

Parameters:

parent - The parent class loader

Method Details

copyWithoutTransformers

public WebappClassLoader copyWithoutTransformers()

Description copied from interface: InstrumentableClassLoader

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