red5 + Flex component life cycle

[Taller]

Есть простое приложение на Flex + red5.
При обновлении страницы в лог red5 попадает следующее:
[ERROR] [NioProcessor-1] org.red5.server.messaging.AbstractPipe - exception when handling pipe connection event
java.lang.NullPointerException: null
at org.red5.server.stream.ClientBroadcastStream.onPipeConnectionEvent(ClientBroadcastStream.java:482) [red5.jar:na]
at org.red5.server.messaging.AbstractPipe.firePipeConnectionEvent(AbstractPipe.java:258) [red5.jar:na]
at org.red5.server.messaging.AbstractPipe.fireProviderConnectionEvent(AbstractPipe.java:248) [red5.jar:na]
at org.red5.server.messaging.AbstractPipe.unsubscribe(AbstractPipe.java:111) [red5.jar:na]
at org.red5.server.stream.ClientBroadcastStream.close(ClientBroadcastStream.java:209) [red5.jar:na]
at org.red5.server.stream.StreamService.deleteStream(StreamService.java:171) [red5.jar:na]
at org.red5.server.stream.StreamService.deleteStream(StreamService.java:156) [red5.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [na:1.6.0_18]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [na:1.6.0_18]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [na:1.6.0_18]
at java.lang.reflect.Method.invoke(Method.java:597) [na:1.6.0_18]
at org.red5.server.service.ServiceInvoker.invoke(ServiceInvoker.java:200) [red5.jar:na]
at org.red5.server.net.rtmp.RTMPHandler.invokeCall(RTMPHandler.java:184) [red5.jar:na]
at org.red5.server.net.rtmp.RTMPHandler.onInvoke(RTMPHandler.java:393) [red5.jar:na]
at org.red5.server.net.rtmp.BaseRTMPHandler.messageReceived(BaseRTMPHandler.java:138) [red5.jar:na]
at org.red5.server.net.rtmp.RTMPMinaIoHandler.messageReceived(RTMPMinaIoHandler.java:180) [red5.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716) [mina-core-2.0.0-
RC2-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.0-RC2
-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) [mina-core-2.0.0-RC2-SNAPSHOT.jar
:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) [mina-core-2.0.0
-RC2-SNAPSHOT.jar:na]
at org.red5.server.net.filter.TrafficShapingFilter.messageReceived(TrafficShapingFilter.java:204) [red5.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.0-RC2
-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) [mina-core-2.0.0-RC2-SNAPSHOT.jar
:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) [mina-core-2.0.0
-RC2-SNAPSHOT.jar:na]
at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:423) [mina-core-2.0.0-R
C2-SNAPSHOT.jar:na]
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245) [mina-core-2.0.0-RC2-SNAPSHOT.jar:
na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.0-RC2
-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) [mina-core-2.0.0-RC2-SNAPSHOT.jar
:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) [mina-core-2.0.0
-RC2-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.0-RC2
-SNAPSHOT.jar:na]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426) [mina-core-2.0.0-RC2-SNA
PSHOT.jar:na]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:715) [mina-core-2.0.0-RC2-SNAPSHOT.j
ar:na]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:668) [mina-core-2.0.0-RC2-SNAPSHO
T.jar:na]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:657) [mina-core-2.0.0-RC2-SNAPSHO
T.jar:na]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$500(AbstractPollingIoProcessor.java:64) [mina-core-2.0.0-RC2-SNAPS
HOT.jar:na]
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1117) [mina-core-2.0.0-RC2-
SNAPSHOT.jar:na]
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_18]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_18]
at java.lang.Thread.run(Thread.java:619) [na:1.6.0_18]

Вопрос:
этот ексепшн отслеживать нужно на сервере?
Или можно во флешке отследить когда будет обновляться страница (или закрываться)? тогда какой event это покажет (чтобы корректно закрыть соединение)?

Добавлено через 49 минут
пришлось в red5 сервере поправить функцию onPipeConnectionEvent...