org.apache.catalina.core

Class ThreadLocalLeakPreventionListener

java.lang.Object

org.apache.catalina.core.FrameworkListener

org.apache.catalina.core.ThreadLocalLeakPreventionListener

All Implemented Interfaces:

ContainerListener, LifecycleListener

public class ThreadLocalLeakPreventionListener
extends FrameworkListener

A LifecycleListener that triggers the renewal of threads in Executor pools when a Context is being stopped to avoid thread-local related memory leaks.

Note : active threads will be renewed one by one when they come back to the pool after executing their task, see ThreadPoolExecutor.afterExecute().

This listener must be declared in server.xml to be active.

Field Summary

Fields

Modifier and Type	Field and Description
protected static StringManager	sm The string manager for this package.

Fields inherited from class org.apache.catalina.core.FrameworkListener

contextListeners

Constructor Summary

Constructors

Constructor and Description
ThreadLocalLeakPreventionListener()

Method Summary

Modifier and Type	Method and Description
void	containerEvent(ContainerEvent event) Acknowledge the occurrence of the specified event.
protected LifecycleListener	createLifecycleListener(Context context) Create a lifecycle listener which will then be added to the specified context.
void	lifecycleEvent(LifecycleEvent event) Listens for LifecycleEvent for the start of the Server to initialize itself and then for after_stop events of each Context.

Methods inherited from class org.apache.catalina.core.FrameworkListener

processContainerAddChild, processContainerRemoveChild, registerContextListener, registerListenersForEngine, registerListenersForHost, registerListenersForServer

Methods inherited from class java.lang.Object

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

Field Detail

sm

protected static final StringManager sm

The string manager for this package.

Constructor Detail

ThreadLocalLeakPreventionListener

public ThreadLocalLeakPreventionListener()

Method Detail

lifecycleEvent

public void lifecycleEvent(LifecycleEvent event)

Listens for LifecycleEvent for the start of the Server to initialize itself and then for after_stop events of each Context.

Specified by:

lifecycleEvent in interface LifecycleListener

Overrides:

lifecycleEvent in class FrameworkListener

Parameters:

event - LifecycleEvent that has occurred

containerEvent

public void containerEvent(ContainerEvent event)

Description copied from interface: ContainerListener

Acknowledge the occurrence of the specified event.

Specified by:

containerEvent in interface ContainerListener

Overrides:

containerEvent in class FrameworkListener

Parameters:

event - ContainerEvent that has occurred

createLifecycleListener

protected LifecycleListener createLifecycleListener(Context context)

Description copied from class: FrameworkListener

Create a lifecycle listener which will then be added to the specified context.

Specified by:

createLifecycleListener in class FrameworkListener

Parameters:

context - the associated Context

Returns:

the lifecycle listener