Package org.apache.catalina.core

Class JreMemoryLeakPreventionListener

java.lang.Object

org.apache.catalina.core.JreMemoryLeakPreventionListener

All Implemented Interfaces:

LifecycleListener

public class JreMemoryLeakPreventionListener
extends Object
implements LifecycleListener

Provide a workaround for known places where the Java Runtime environment can cause a memory leak or lock files.

Memory leaks occur when JRE code uses the context class loader to load a singleton as this will cause a memory leak if a web application class loader happens to be the context class loader at the time. The work-around is to initialise these singletons when Tomcat's common class loader is the context class loader.

Locked files usually occur when a resource inside a JAR is accessed without first disabling Jar URL connection caching. The workaround is to disable this caching by default.

This listener must only be nested within Server elements.

Constructor Summary

Constructors

Constructor	Description
JreMemoryLeakPreventionListener()

Method Summary

Modifier and Type	Method	Description
String	getClassesToInitialize()
boolean	getInitSeedGenerator()
boolean	isAppContextProtection()
boolean	isDriverManagerProtection()
boolean	isUrlCacheProtection()
void	lifecycleEvent(LifecycleEvent event)	Acknowledge the occurrence of the specified event.
void	setAppContextProtection(boolean appContextProtection)
void	setClassesToInitialize(String classesToInitialize)
void	setDriverManagerProtection(boolean driverManagerProtection)
void	setInitSeedGenerator(boolean initSeedGenerator)
void	setUrlCacheProtection(boolean urlCacheProtection)

Methods inherited from class java.lang.Object

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

Constructor Details

JreMemoryLeakPreventionListener

public JreMemoryLeakPreventionListener()

Method Details

isAppContextProtection

public boolean isAppContextProtection()

setAppContextProtection

public void setAppContextProtection(boolean appContextProtection)

isUrlCacheProtection

public boolean isUrlCacheProtection()

setUrlCacheProtection

public void setUrlCacheProtection(boolean urlCacheProtection)

isDriverManagerProtection

public boolean isDriverManagerProtection()

setDriverManagerProtection

public void setDriverManagerProtection(boolean driverManagerProtection)

getClassesToInitialize

public String getClassesToInitialize()

setClassesToInitialize

public void setClassesToInitialize(String classesToInitialize)

getInitSeedGenerator

public boolean getInitSeedGenerator()

setInitSeedGenerator

public void setInitSeedGenerator(boolean initSeedGenerator)

lifecycleEvent

public void lifecycleEvent(LifecycleEvent event)

Description copied from interface: LifecycleListener

Acknowledge the occurrence of the specified event.

Specified by:

lifecycleEvent in interface LifecycleListener

Parameters:

event - LifecycleEvent that has occurred