Occasional NPE in block method during acceptor start.

From Toli Kuznets...

I have a basic app that uses QFJ to communicate. I have a bunch of uni
tests running continiously, and they've been passing with the app
linked to 1.0.0-final of QuickFix/J.

However, as soon as i tried switching to 1.0.2 i get the following error:
Exception in thread "QFJ Socket Acceptor 126f75b" java.lang.NullPointerException
at quickfix.mina.SingleThreadedEventHandlingStrategy$SessionMessageEvent.processMessage(SingleThreadedEventHandlingStrategy.java:131)
at quickfix.mina.SingleThreadedEventHandlingStrategy.block(SingleThreadedEventHandlingStrategy.java:70)
at quickfix.mina.SingleThreadedEventHandlingStrategy$1.run(SingleThreadedEventHandlingStrategy.java:86)
at java.lang.Thread.run(Unknown Source)

There's no nested exception, and it's a thread created by QFJ and not my app.

Switching the code back to using 1.0.0-final fixes the problem. I
never used 1.0.1 so i can't tell if the problem manifests itself there
as well.

Any ideas on what could be causing this?
This is happening both on Ubuntu Linux and MacOSX. Not even sure how
to debug this since the exception is coming from a QFJ/mina code.

-------------------------------------------------------------------------------------------------------------------------------
From Joerg Thoennes...

Steve, the same happened to me. Today I got with version 1.0.1 this error:

[2006-08-15 17:41:47,472] [INFO ] [quickfix.mina.acceptor.AcceptorIoHandler] (SocketAcceptor-0) MINA
session created: /192.168.1.8:57611
[2006-08-15 17:41:47,573] [DEBUG] [FixLogFactory] (AnonymousIoService-1-2)
FIX.4.2:FixGateway->FixClient: incoming:
8=FIX.4.2|9=62|35=5|34=1|49=FixClient|52=20060815-15:41:47.540|56=FixGateway|10=091|
Exception in thread "QFJ Socket Acceptor 992bae" java.lang.NullPointerException
at
quickfix.mina.SingleThreadedEventHandlingStrategy$SessionMessageEvent.processMessage(SingleThreadedEventHandlingStrategy.java:131)
at
quickfix.mina.SingleThreadedEventHandlingStrategy.block(SingleThreadedEventHandlingStrategy.java:70)
at
quickfix.mina.SingleThreadedEventHandlingStrategy$1.run(SingleThreadedEventHandlingStrategy.java:86)
at java.lang.Thread.run(Thread.java:595)

If I can reproduce this error tomorrow, I will send you more details.