NullPointerException in ProtocolCodecFilter.filterWrite
-------------------------------------------------------
Key: DIRMINA-679
URL: https://issues.apache.org/jira/browse/DIRMINA-679
Project: MINA
Issue Type: Bug
Affects Versions: 2.0.0-M4
Reporter: John J. Franey
Looks like filterWrite obtains a reference from the session's attributes, but
the desired attribute is not there.
I am running max of 250 datagram sockets under load test for my application.
Connections last about 60 seconds and released. Almost immediately another
connection is obtained.
Over a period of two hours running this load test, this exception occured twice.
org.apache.mina.filter.codec.ProtocolEncoderException:
java.lang.NullPointerException
at
org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:312)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$7(DefaultIoFilterChain.java:501)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:814)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:740)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:418)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:359)
....
Caused by: java.lang.NullPointerException
at
org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:297)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:814)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:741)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:359)
at
org.mobicents.media.server.impl.NioConnection$Sender.receive(NioConnection.java:584)
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