public  void addChild(Container child) 
{
        if (Globals.IS_SECURITY_ENABLED) {
            PrivilegedAction dp =
                new PrivilegedAddChild(child);
            AccessController.doPrivileged(dp);
        } else {
            addChildInternal(child);
        }
}

Add a new child Container to those associated with this Container, if supported. Prior to adding this Container to the set of children, the child's setParent() method must be called, with this Container as an argument. This method may thrown an IllegalArgumentException if this Container chooses not to be attached to the specified Container, in which case it is not added

 public  void addContainerListener(ContainerListener listener) 
{
        synchronized (listeners) {
            listeners.add(listener);
        }
}

Add a container event listener to this component.

 public  void addLifecycleListener(LifecycleListener listener) 
{
        lifecycle.addLifecycleListener(listener);
}

Add a lifecycle event listener to this component.

 public  void addPropertyChangeListener(PropertyChangeListener listener) 
{
        support.addPropertyChangeListener(listener);
}

Add a property change listener to this component.

 public synchronized  void addValve(Valve valve) 
{
        pipeline.addValve(valve);
        fireContainerEvent(ADD_VALVE_EVENT, valve);
}

Add a new Valve to the end of the pipeline associated with this Container. Prior to adding the Valve, the Valve's setContainer method must be called, with this Container as an argument. The method may throw an IllegalArgumentException if this Valve chooses not to be associated with this Container, or IllegalStateException if it is already associated with a different Container.

 public  void backgroundProcess() 
{
        
        if (!started)
            return;
        if (cluster != null) {
            try {
                cluster.backgroundProcess();
            } catch (Exception e) {
                log.warn(sm.getString("containerBase.backgroundProcess.cluster", cluster), e);                
            }
        }
        if (loader != null) {
            try {
                loader.backgroundProcess();
            } catch (Exception e) {
                log.warn(sm.getString("containerBase.backgroundProcess.loader", loader), e);                
            }
        }
        if (manager != null) {
            try {
                manager.backgroundProcess();
            } catch (Exception e) {
                log.warn(sm.getString("containerBase.backgroundProcess.manager", manager), e);                
            }
        }
        if (realm != null) {
            try {
                realm.backgroundProcess();
            } catch (Exception e) {
                log.warn(sm.getString("containerBase.backgroundProcess.realm", realm), e);                
            }
        }
        Valve current = pipeline.getFirst();
        while (current != null) {
            try {
                current.backgroundProcess();
            } catch (Exception e) {
                log.warn(sm.getString("containerBase.backgroundProcess.valve", current), e);                
            }
            current = current.getNext();
        }
        lifecycle.fireLifecycleEvent(Lifecycle.PERIODIC_EVENT, null);
}

Execute a periodic task, such as reloading, etc. This method will be invoked inside the classloading context of this container. Unexpected throwables will be caught and logged.

 public ObjectName createObjectName(String domain,
    ObjectName parent) throws Exception 
{
        if( log.isDebugEnabled())
            log.debug("Create ObjectName " + domain + " " + parent );
        return null;
}

 public  void destroy() throws Exception 
{
        if( started ) {
            stop();
        }
        initialized=false;
        // unregister this component
        if ( oname != null ) {
            try {
                if( controller == oname ) {
                    Registry.getRegistry(null, null)
                        .unregisterComponent(oname);
                    if(log.isDebugEnabled())
                        log.debug("unregistering " + oname);
                }
            } catch( Throwable t ) {
                log.error("Error unregistering ", t );
            }
        }
        if (parent != null) {
            parent.removeChild(this);
        }
        // Stop our child containers, if any
        Container children[] = findChildren();
        for (int i = 0; i <  children.length; i++) {
            removeChild(children[i]);
        }
}

 public Container findChild(String name) 
{
        if (name == null)
            return (null);
        synchronized (children) {       // Required by post-start changes
            return ((Container) children.get(name));
        }
}

Return the child Container, associated with this Container, with the specified name (if any); otherwise, return null

 public Container[] findChildren() 
{
        synchronized (children) {
            Container results[] = new Container[children.size()];
            return ((Container[]) children.values().toArray(results));
        }
}

Return the set of children Containers associated with this Container. If this Container has no children, a zero-length array is returned.

 public ContainerListener[] findContainerListeners() 
{
        synchronized (listeners) {
            ContainerListener[] results = 
                new ContainerListener[listeners.size()];
            return ((ContainerListener[]) listeners.toArray(results));
        }
}

Return the set of container listeners associated with this Container. If this Container has no registered container listeners, a zero-length array is returned.

 public LifecycleListener[] findLifecycleListeners() 
{
        return lifecycle.findLifecycleListeners();
}

Get the lifecycle listeners associated with this lifecycle. If this Lifecycle has no listeners registered, a zero-length array is returned.

 public  void fireContainerEvent(String type,
    Object data) 
{
        if (listeners.size() <  1)
            return;
        ContainerEvent event = new ContainerEvent(this, type, data);
        ContainerListener list[] = new ContainerListener[0];
        synchronized (listeners) {
            list = (ContainerListener[]) listeners.toArray(list);
        }
        for (int i = 0; i <  list.length; i++)
            ((ContainerListener) list[i]).containerEvent(event);
}

Notify all container event listeners that a particular event has occurred for this Container. The default implementation performs this notification synchronously using the calling thread.

 public int getBackgroundProcessorDelay() 
{
    // ------------------------------------------------------------- Properties
        return backgroundProcessorDelay;
}

Get the delay between the invocation of the backgroundProcess method on this container and its children. Child containers will not be invoked if their delay value is not negative (which would mean they are using their own thread). Setting this to a positive value will cause a thread to be spawn. After waiting the specified amount of time, the thread will invoke the executePeriodic method on this container and all its children.

 public Valve getBasic() 
{
        return (pipeline.getBasic());
}

Return the Valve instance that has been distinguished as the basic Valve for this Pipeline (if any).

 public ObjectName[] getChildren() 
{
        ObjectName result[]=new ObjectName[children.size()];
        Iterator it=children.values().iterator();
        int i=0;
        while( it.hasNext() ) {
            Object next=it.next();
            if( next instanceof ContainerBase ) {
                result[i++]=((ContainerBase)next).getJmxName();
            }
        }
        return result;
}

 public Cluster getCluster() 
{
        if (cluster != null)
            return (cluster);
        if (parent != null)
            return (parent.getCluster());
        return (null);
}

Return the Cluster with which this Container is associated. If there is no associated Cluster, return the Cluster associated with our parent Container (if any); otherwise return null.

 public String getContainerSuffix() 
{
        Container container=this;
        Container context=null;
        Container host=null;
        Container servlet=null;
        StringBuffer suffix=new StringBuffer();
        if( container instanceof StandardHost ) {
            host=container;
        } else if( container instanceof StandardContext ) {
            host=container.getParent();
            context=container;
        } else if( container instanceof StandardWrapper ) {
            context=container.getParent();
            host=context.getParent();
            servlet=container;
        }
        if( context!=null ) {
            String path=((StandardContext)context).getPath();
            suffix.append(",path=").append((path.equals("")) ? "/" : path);
        } 
        if( host!=null ) suffix.append(",host=").append( host.getName() );
        if( servlet != null ) {
            String name=container.getName();
            suffix.append(",servlet=");
            suffix.append((name=="") ? "/" : name);
        }
        return suffix.toString();
}

 public String getDomain() 
{
        if( domain==null ) {
            Container parent=this;
            while( parent != null &&
                    !( parent instanceof StandardEngine) ) {
                parent=parent.getParent();
            }
            if( parent instanceof StandardEngine ) {
                domain=((StandardEngine)parent).getDomain();
            } 
        }
        return domain;
}

 public Valve getFirst() 
{
        return (pipeline.getFirst());
}

Return the first valve in the pipeline.

 public String getInfo() 
{
        return this.getClass().getName();
}

Return descriptive information about this Container implementation and the corresponding version number, in the format <description>/<version>.

 protected String getJSR77Suffix() 
{
        return suffix;
}

 public ObjectName getJmxName() 
{
        return oname;
}

 public Loader getLoader() 
{
        if (loader != null)
            return (loader);
        if (parent != null)
            return (parent.getLoader());
        return (null);
}

Return the Loader with which this Container is associated. If there is no associated Loader, return the Loader associated with our parent Container (if any); otherwise, return null.

 public Log getLogger() 
{
        if (logger != null)
            return (logger);
        logger = LogFactory.getLog(logName());
        return (logger);
}

Return the Logger with which this Container is associated. If there is no associated Logger, return the Logger associated with our parent Container (if any); otherwise return null.

 public Manager getManager() 
{
        if (manager != null)
            return (manager);
        if (parent != null)
            return (parent.getManager());
        return (null);
}

Return the Manager with which this Container is associated. If there is no associated Manager, return the Manager associated with our parent Container (if any); otherwise return null.

 public Object getMappingObject() 
{
        return this;
}

Return an object which may be utilized for mapping to this component.

 public String getName() 
{
        return (name);
}

Return a name string (suitable for use by humans) that describes this Container. Within the set of child containers belonging to a particular parent, Container names must be unique.

 public String getObjectName() 
{
        if (oname != null) {
            return oname.toString();
        } else return null;
}

 public Container getParent() 
{
        return (parent);
}

Return the Container for which this Container is a child, if there is one. If there is no defined parent, return null.

 public ClassLoader getParentClassLoader() 
{
        if (parentClassLoader != null)
            return (parentClassLoader);
        if (parent != null) {
            return (parent.getParentClassLoader());
        }
        return (ClassLoader.getSystemClassLoader());
}

Return the parent class loader (if any) for this web application. This call is meaningful only after a Loader has been configured.

 public ObjectName getParentName() throws MalformedObjectNameException 
{
        return null;
}

 public Pipeline getPipeline() 
{
        return (this.pipeline);
}

Return the Pipeline object that manages the Valves associated with this Container.

 public Realm getRealm() 
{
        if (realm != null)
            return (realm);
        if (parent != null)
            return (parent.getRealm());
        return (null);
}

Return the Realm with which this Container is associated. If there is no associated Realm, return the Realm associated with our parent Container (if any); otherwise return null.

 public DirContext getResources() 
{
        if (resources != null)
            return (resources);
        if (parent != null)
            return (parent.getResources());
        return (null);
}

Return the resources DirContext object with which this Container is associated. If there is no associated resources object, return the resources associated with our parent Container (if any); otherwise return null.

 public boolean getStartChildren() 
{
        return (startChildren);
}

Return if children of this container will be started automatically when they are added to this container.

 public String getType() 
{
        return type;
}

 public ObjectName[] getValveObjectNames() 
{
        return ((StandardPipeline)pipeline).getValveObjectNames();
}

 public Valve[] getValves() 
{
        return (pipeline.getValves());
}

Return the set of Valves in the pipeline associated with this Container, including the basic Valve (if any). If there are no such Valves, a zero-length array is returned.

 public  void init() throws Exception 
{
        if( this.getParent() == null ) {
            // "Life" update
            ObjectName parentName=getParentName();
            //log.info("Register " + parentName );
            if( parentName != null && 
                    mserver.isRegistered(parentName)) 
            {
                mserver.invoke(parentName, "addChild", new Object[] { this },
                        new String[] {"org.apache.catalina.Container"});
            }
        }
        initialized=true;
}

Init method, part of the MBean lifecycle. If the container was added via JMX, it'll register itself with the parent, using the ObjectName conventions to locate the parent. If the container was added directly and it doesn't have an ObjectName, it'll create a name and register itself with the JMX console. On destroy(), the object will unregister.

 public  void invoke(Request request,
    Response response) throws IOException, ServletException 
{
        pipeline.getFirst().invoke(request, response);
}

Process the specified Request, to produce the corresponding Response, by invoking the first Valve in our pipeline (if any), or the basic Valve otherwise.

 protected String logName() 
{
        if (logName != null) {
            return logName;
        }
        String loggerName = null;
        Container current = this;
        while (current != null) {
            String name = current.getName();
            if ((name == null) || (name.equals(""))) {
                name = "/";
            }
            loggerName = "[" + name + "]" 
                + ((loggerName != null) ? ("." + loggerName) : "");
            current = current.getParent();
        }
        logName = ContainerBase.class.getName() + "." + loggerName;
        return logName;
}

Return the abbreviated name of this container for logging messsages

 public  void postDeregister() 
{

}

 public  void postRegister(Boolean registrationDone) 
{

}

 public  void preDeregister() throws Exception 
{

}

 public ObjectName preRegister(MBeanServer server,
    ObjectName name) throws Exception 
{
        oname=name;
        mserver=server;
        if (name == null ){
            return null;
        }
        domain=name.getDomain();
        type=name.getKeyProperty("type");
        if( type==null ) {
            type=name.getKeyProperty("j2eeType");
        }
        String j2eeApp=name.getKeyProperty("J2EEApplication");
        String j2eeServer=name.getKeyProperty("J2EEServer");
        if( j2eeApp==null ) {
            j2eeApp="none";
        }
        if( j2eeServer==null ) {
            j2eeServer="none";
        }
        suffix=",J2EEApplication=" + j2eeApp + ",J2EEServer=" + j2eeServer;
        return name;
}

 public  void removeChild(Container child) 
{
        synchronized(children) {
            if (children.get(child.getName()) == null)
                return;
            children.remove(child.getName());
        }
        if (started && (child instanceof Lifecycle)) {
            try {
                if( child instanceof ContainerBase ) {
                    if( ((ContainerBase)child).started ) {
                        ((Lifecycle) child).stop();
                    }
                } else {
                    ((Lifecycle) child).stop();
                }
            } catch (LifecycleException e) {
                log.error("ContainerBase.removeChild: stop: ", e);
            }
        }
        fireContainerEvent(REMOVE_CHILD_EVENT, child);
        // child.setParent(null);
}

Remove an existing child Container from association with this parent Container.

 public  void removeContainerListener(ContainerListener listener) 
{
        synchronized (listeners) {
            listeners.remove(listener);
        }
}

Remove a container event listener from this component.

 public  void removeLifecycleListener(LifecycleListener listener) 
{
        lifecycle.removeLifecycleListener(listener);
}

Remove a lifecycle event listener from this component.

 public  void removePropertyChangeListener(PropertyChangeListener listener) 
{
        support.removePropertyChangeListener(listener);
}

Remove a property change listener from this component.

 public synchronized  void removeValve(Valve valve) 
{
        pipeline.removeValve(valve);
        fireContainerEvent(REMOVE_VALVE_EVENT, valve);
}

Remove the specified Valve from the pipeline associated with this Container, if it is found; otherwise, do nothing.

 public  void setBackgroundProcessorDelay(int delay) 
{
        backgroundProcessorDelay = delay;
}

Set the delay between the invocation of the execute method on this container and its children.

 public  void setBasic(Valve valve) 
{
        pipeline.setBasic(valve);
}

Set the Valve instance that has been distinguished as the basic Valve for this Pipeline (if any). Prioer to setting the basic Valve, the Valve's setContainer() will be called, if it implements Contained, with the owning Container as an argument. The method may throw an IllegalArgumentException if this Valve chooses not to be associated with this Container, or IllegalStateException if it is already associated with a different Container.

 public synchronized  void setCluster(Cluster cluster) 
{
        // Change components if necessary
        Cluster oldCluster = this.cluster;
        if (oldCluster == cluster)
            return;
        this.cluster = cluster;
        // Stop the old component if necessary
        if (started && (oldCluster != null) &&
            (oldCluster instanceof Lifecycle)) {
            try {
                ((Lifecycle) oldCluster).stop();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setCluster: stop: ", e);
            }
        }
        // Start the new component if necessary
        if (cluster != null)
            cluster.setContainer(this);
        if (started && (cluster != null) &&
            (cluster instanceof Lifecycle)) {
            try {
                ((Lifecycle) cluster).start();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setCluster: start: ", e);
            }
        }
        // Report this property change to interested listeners
        support.firePropertyChange("cluster", oldCluster, this.cluster);
}

Set the Cluster with which this Container is associated.

 public  void setDomain(String domain) 
{
        this.domain=domain;
}

 public synchronized  void setLoader(Loader loader) 
{
        // Change components if necessary
        Loader oldLoader = this.loader;
        if (oldLoader == loader)
            return;
        this.loader = loader;
        // Stop the old component if necessary
        if (started && (oldLoader != null) &&
            (oldLoader instanceof Lifecycle)) {
            try {
                ((Lifecycle) oldLoader).stop();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setLoader: stop: ", e);
            }
        }
        // Start the new component if necessary
        if (loader != null)
            loader.setContainer(this);
        if (started && (loader != null) &&
            (loader instanceof Lifecycle)) {
            try {
                ((Lifecycle) loader).start();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setLoader: start: ", e);
            }
        }
        // Report this property change to interested listeners
        support.firePropertyChange("loader", oldLoader, this.loader);
}

Set the Loader with which this Container is associated.

 public synchronized  void setManager(Manager manager) 
{
        // Change components if necessary
        Manager oldManager = this.manager;
        if (oldManager == manager)
            return;
        this.manager = manager;
        // Stop the old component if necessary
        if (started && (oldManager != null) &&
            (oldManager instanceof Lifecycle)) {
            try {
                ((Lifecycle) oldManager).stop();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setManager: stop: ", e);
            }
        }
        // Start the new component if necessary
        if (manager != null)
            manager.setContainer(this);
        if (started && (manager != null) &&
            (manager instanceof Lifecycle)) {
            try {
                ((Lifecycle) manager).start();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setManager: start: ", e);
            }
        }
        // Report this property change to interested listeners
        support.firePropertyChange("manager", oldManager, this.manager);
}

Set the Manager with which this Container is associated.

 public  void setName(String name) 
{
        String oldName = this.name;
        this.name = name;
        support.firePropertyChange("name", oldName, this.name);
}

Set a name string (suitable for use by humans) that describes this Container. Within the set of child containers belonging to a particular parent, Container names must be unique.

 public  void setParent(Container container) 
{
        Container oldParent = this.parent;
        this.parent = container;
        support.firePropertyChange("parent", oldParent, this.parent);
}

Set the parent Container to which this Container is being added as a child. This Container may refuse to become attached to the specified Container by throwing an exception.

 public  void setParentClassLoader(ClassLoader parent) 
{
        ClassLoader oldParentClassLoader = this.parentClassLoader;
        this.parentClassLoader = parent;
        support.firePropertyChange("parentClassLoader", oldParentClassLoader,
                                   this.parentClassLoader);
}

Set the parent class loader (if any) for this web application. This call is meaningful only before a Loader has been configured, and the specified value (if non-null) should be passed as an argument to the class loader constructor.

 public synchronized  void setRealm(Realm realm) 
{
        // Change components if necessary
        Realm oldRealm = this.realm;
        if (oldRealm == realm)
            return;
        this.realm = realm;
        // Stop the old component if necessary
        if (started && (oldRealm != null) &&
            (oldRealm instanceof Lifecycle)) {
            try {
                ((Lifecycle) oldRealm).stop();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setRealm: stop: ", e);
            }
        }
        // Start the new component if necessary
        if (realm != null)
            realm.setContainer(this);
        if (started && (realm != null) &&
            (realm instanceof Lifecycle)) {
            try {
                ((Lifecycle) realm).start();
            } catch (LifecycleException e) {
                log.error("ContainerBase.setRealm: start: ", e);
            }
        }
        // Report this property change to interested listeners
        support.firePropertyChange("realm", oldRealm, this.realm);
}

Set the Realm with which this Container is associated.

 public synchronized  void setResources(DirContext resources) 
{
        // Called from StandardContext.setResources()
        //              < - StandardContext.start() 
        //              < - ContainerBase.addChildInternal() 
        // Change components if necessary
        DirContext oldResources = this.resources;
        if (oldResources == resources)
            return;
        Hashtable env = new Hashtable();
        if (getParent() != null)
            env.put(ProxyDirContext.HOST, getParent().getName());
        env.put(ProxyDirContext.CONTEXT, getName());
        this.resources = new ProxyDirContext(env, resources);
        // Report this property change to interested listeners
        support.firePropertyChange("resources", oldResources, this.resources);
}

Set the resources DirContext object with which this Container is associated.

 public  void setStartChildren(boolean startChildren) 
{
        boolean oldStartChildren = this.startChildren;
        this.startChildren = startChildren;
        support.firePropertyChange("startChildren", oldStartChildren, this.startChildren);
}

Set if children of this container will be started automatically when they are added to this container.

 public synchronized  void start() throws LifecycleException 
{
        // Validate and update our current component state
        if (started) {
            if(log.isInfoEnabled())
                log.info(sm.getString("containerBase.alreadyStarted", logName()));
            return;
        }
        // Notify our interested LifecycleListeners
        lifecycle.fireLifecycleEvent(BEFORE_START_EVENT, null);
        started = true;
        // Start our subordinate components, if any
        if ((loader != null) && (loader instanceof Lifecycle))
            ((Lifecycle) loader).start();
        logger = null;
        getLogger();
        if ((logger != null) && (logger instanceof Lifecycle))
            ((Lifecycle) logger).start();
        if ((manager != null) && (manager instanceof Lifecycle))
            ((Lifecycle) manager).start();
        if ((cluster != null) && (cluster instanceof Lifecycle))
            ((Lifecycle) cluster).start();
        if ((realm != null) && (realm instanceof Lifecycle))
            ((Lifecycle) realm).start();
        if ((resources != null) && (resources instanceof Lifecycle))
            ((Lifecycle) resources).start();
        // Start our child containers, if any
        Container children[] = findChildren();
        for (int i = 0; i <  children.length; i++) {
            if (children[i] instanceof Lifecycle)
                ((Lifecycle) children[i]).start();
        }
        // Start the Valves in our pipeline (including the basic), if any
        if (pipeline instanceof Lifecycle)
            ((Lifecycle) pipeline).start();
        // Notify our interested LifecycleListeners
        lifecycle.fireLifecycleEvent(START_EVENT, null);
        // Start our thread
        threadStart();
        // Notify our interested LifecycleListeners
        lifecycle.fireLifecycleEvent(AFTER_START_EVENT, null);
}

Prepare for active use of the public methods of this Component.

 public synchronized  void stop() throws LifecycleException 
{
        // Validate and update our current component state
        if (!started) {
            if(log.isInfoEnabled())
                log.info(sm.getString("containerBase.notStarted", logName()));
            return;
        }
        // Notify our interested LifecycleListeners
        lifecycle.fireLifecycleEvent(BEFORE_STOP_EVENT, null);
        // Stop our thread
        threadStop();
        // Notify our interested LifecycleListeners
        lifecycle.fireLifecycleEvent(STOP_EVENT, null);
        started = false;
        // Stop the Valves in our pipeline (including the basic), if any
        if (pipeline instanceof Lifecycle) {
            ((Lifecycle) pipeline).stop();
        }
        // Stop our child containers, if any
        Container children[] = findChildren();
        for (int i = 0; i <  children.length; i++) {
            if (children[i] instanceof Lifecycle)
                ((Lifecycle) children[i]).stop();
        }
        // Remove children - so next start can work
        children = findChildren();
        for (int i = 0; i <  children.length; i++) {
            removeChild(children[i]);
        }
        // Stop our subordinate components, if any
        if ((resources != null) && (resources instanceof Lifecycle)) {
            ((Lifecycle) resources).stop();
        }
        if ((realm != null) && (realm instanceof Lifecycle)) {
            ((Lifecycle) realm).stop();
        }
        if ((cluster != null) && (cluster instanceof Lifecycle)) {
            ((Lifecycle) cluster).stop();
        }
        if ((manager != null) && (manager instanceof Lifecycle)) {
            ((Lifecycle) manager).stop();
        }
        if ((logger != null) && (logger instanceof Lifecycle)) {
            ((Lifecycle) logger).stop();
        }
        if ((loader != null) && (loader instanceof Lifecycle)) {
            ((Lifecycle) loader).stop();
        }
        // Notify our interested LifecycleListeners
        lifecycle.fireLifecycleEvent(AFTER_STOP_EVENT, null);
}

Gracefully shut down active use of the public methods of this Component.

 protected  void threadStart() 
{
        if (thread != null)
            return;
        if (backgroundProcessorDelay < = 0)
            return;
        threadDone = false;
        String threadName = "ContainerBackgroundProcessor[" + toString() + "]";
        thread = new Thread(new ContainerBackgroundProcessor(), threadName);
        thread.setDaemon(true);
        thread.start();
}

Start the background thread that will periodically check for session timeouts.

 protected  void threadStop() 
{
        if (thread == null)
            return;
        threadDone = true;
        thread.interrupt();
        try {
            thread.join();
        } catch (InterruptedException e) {
            ;
        }
        thread = null;
}

Stop the background thread that is periodically checking for session timeouts.