Class TomcatEmbeddedWebappClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.apache.catalina.loader.WebappClassLoaderBase

org.apache.catalina.loader.ParallelWebappClassLoader

org.springframework.boot.tomcat.TomcatEmbeddedWebappClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable, Lifecycle, WebappProperties, InstrumentableClassLoader

public class TomcatEmbeddedWebappClassLoader
extends ParallelWebappClassLoader

Extension of Tomcat's ParallelWebappClassLoader that does not consider the system classloader. This is required to ensure that any custom context class loader is always used (as is the case with some executable archives).

Since:

4.0.0

Author:

Phillip Webb, Andy Clement

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
TomcatEmbeddedWebappClassLoader()
TomcatEmbeddedWebappClassLoader(@Nullable ClassLoader parent)

Method Summary

Modifier and Type	Method	Description
protected void	addURL(URL url)
@Nullable URL	findResource(String name)
Enumeration<URL>	findResources(String name)
Class<?>	loadClass(String name, boolean resolve)

Methods inherited from class ParallelWebappClassLoader

copyWithoutTransformers

Methods inherited from class WebappClassLoaderBase

addLifecycleListener, addTransformer, checkStateForClassLoading, checkStateForResourceLoading, clearReferences, copyStateWithoutTransformers, destroy, doDefineClass, filter, findClass, findClassInternal, findLifecycleListeners, findLoadedClass0, 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, 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, getClassLoadingLock, 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

TomcatEmbeddedWebappClassLoader

public TomcatEmbeddedWebappClassLoader()

TomcatEmbeddedWebappClassLoader

public TomcatEmbeddedWebappClassLoader(@Nullable ClassLoader parent)

Method Details

findResource

public @Nullable URL findResource(String name)

Overrides:

findResource in class WebappClassLoaderBase

findResources

public Enumeration<URL> findResources(String name)
                               throws IOException

Overrides:

findResources in class WebappClassLoaderBase

Throws:

IOException

loadClass

public Class<?> loadClass(String name,
 boolean resolve)
                   throws ClassNotFoundException

Overrides:

loadClass in class WebappClassLoaderBase

Throws:

ClassNotFoundException

addURL

protected void addURL(URL url)

Overrides:

addURL in class WebappClassLoaderBase