Uses of Interface
se.jiderhamn.classloader.leak.prevention.PreClassLoaderInitiator

Packages that use PreClassLoaderInitiator

Package	Description
se.jiderhamn.classloader.leak.prevention
se.jiderhamn.classloader.leak.prevention.preinit

Uses of PreClassLoaderInitiator in se.jiderhamn.classloader.leak.prevention

Classes in se.jiderhamn.classloader.leak.prevention that implement PreClassLoaderInitiator

Modifier and Type

Class and Description

class

ReplaceDOMNormalizerSerializerAbortException As reported at https://github.com/mjiderhamn/classloader-leak-prevention/issues/36, invoking DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument().normalizeDocument(); or Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument(); DOMImplementationLS implementation = (DOMImplementationLS)document.getImplementation(); implementation.createLSSerializer().writeToString(document); may trigger leaks caused by the static fields com.sun.org.apache.xerces.internal.dom.DOMNormalizer#abort and com.sun.org.apache.xml.internal.serialize.DOMSerializerImpl#abort respectively keeping stacktraces/backtraces that may include references to classes loaded by our web application.

Fields in se.jiderhamn.classloader.leak.prevention with type parameters of type PreClassLoaderInitiator

Modifier and Type	Field and Description
protected Map<String,PreClassLoaderInitiator>	ClassLoaderLeakPreventorFactory.preInitiators Map from name to PreClassLoaderInitiators with all the actions to invoke in the ClassLoaderLeakPreventorFactory.leakSafeClassLoader.

Methods in se.jiderhamn.classloader.leak.prevention with type parameters of type PreClassLoaderInitiator

Modifier and Type	Method and Description
<C extends PreClassLoaderInitiator> C	ClassLoaderLeakPreventorFactory.getPreInitiator(Class<C> clazz) Get instance of PreClassLoaderInitiator for further configuring.
<C extends PreClassLoaderInitiator> void	ClassLoaderLeakPreventorFactory.removePreInitiator(Class<C> clazz) Get instance of PreClassLoaderInitiator for further configuring

Methods in se.jiderhamn.classloader.leak.prevention with parameters of type PreClassLoaderInitiator

Modifier and Type	Method and Description
void	ClassLoaderLeakPreventorFactory.addPreInitiator(PreClassLoaderInitiator preClassLoaderInitiator) Add a new PreClassLoaderInitiator, using the class name as name

Constructor parameters in se.jiderhamn.classloader.leak.prevention with type arguments of type PreClassLoaderInitiator

Constructor and Description
ClassLoaderLeakPreventor(ClassLoader leakSafeClassLoader, ClassLoader classLoader, Logger logger, Collection<PreClassLoaderInitiator> preClassLoaderInitiators, Collection<ClassLoaderPreMortemCleanUp> cleanUps)

Uses of PreClassLoaderInitiator in se.jiderhamn.classloader.leak.prevention.preinit

Classes in se.jiderhamn.classloader.leak.prevention.preinit that implement PreClassLoaderInitiator

Modifier and Type	Class and Description
class	AwtToolkitInitiator The first call to java.awt.Toolkit.getDefaultToolkit() will spawn a new thread with the same contextClassLoader as the caller.
class	DatatypeConverterImplInitiator DatatypeConverterImpl in the JAXB Reference Implementation shipped with JDK 1.6+ will keep a static reference (DatatypeConverterImpl) to a concrete subclass of DatatypeFactory, that is resolved when the class is loaded (which I believe happens if you have custom bindings that reference the static methods in DatatypeConverter).
class	DocumentBuilderFactoryInitiator The classloader of the first thread to call DocumentBuilderFactory.newInstance().newDocumentBuilder() seems to be unable to garbage collection.
class	JarUrlConnectionInitiator The caching mechanism of JarURLConnection can prevent JAR files to be reloaded.
class	Java2dDisposerInitiator Loading the class sun.java2d.Disposer will spawn a new thread with the same contextClassLoader.
class	Java2dRenderQueueInitiator Using the class sun.java2d.opengl.OGLRenderQueue will spawn a new QueueFlusher thread with the same contextClassLoader.
class	JavaxSecurityLoginConfigurationInitiator The class javax.security.auth.login.Configuration will keep a strong static reference to the contextClassLoader of Thread from which the class is loaded.
class	JdbcDriversInitiator Your JDBC driver will be registered in java.sql.DriverManager, which means that if you include your JDBC driver inside your web application, there will be a reference to your webapps classloader from system classes (see part II).
class	LdapPoolManagerInitiator The contextClassLoader of the thread loading the com.sun.jndi.ldap.LdapPoolManager class may be kept from being garbage collected, since it will start a new thread if the system property com.sun.jndi.ldap.connect.pool.timeout is set to a value greater than 0.
class	OracleJdbcThreadInitiator See https://github.com/mjiderhamn/classloader-leak-prevention/issues/8 and https://github.com/mjiderhamn/classloader-leak-prevention/issues/23 and https://github.com/mjiderhamn/classloader-leak-prevention/issues/69 and http://java.jiderhamn.se/2012/02/26/classloader-leaks-v-common-mistakes-and-known-offenders/
class	SecurityPolicyInitiator javax.security.auth.Policy.getPolicy() will keep a strong static reference to the contextClassLoader of the first calling thread.
class	SecurityProvidersInitiator Custom java.security.Provider loaded in your web application and registered with java.security.Security.addProvider() must be unregistered with java.security.Security.removeProvider() at application shutdown, or it will cause leaks.
class	SunAwtAppContextInitiator There will be a strong reference from sun.awt.AppContext#contextClassLoader to the classloader of the calls to sun.awt.AppContext#getAppContext().
class	SunGCInitiator sun.misc.GC.requestLatency(long), which is known to be called from javax.management.remote.rmi.RMIConnectorServer.start(), will cause the current contextClassLoader to be unavailable for garbage collection.