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From: Bob DeRemer <bob.deremer@thingworx.com>
To: Tomcat Users List <users@tomcat.apache.org>
Subject: RE: possible tomcat 7.0.47 jsr-356 bug: NULL pointer being thrown
 when DecodeException is caught in PojoMessageHandlerWholeBase<T>.onMessage
Thread-Topic: possible tomcat 7.0.47 jsr-356 bug: NULL pointer being thrown
 when DecodeException is caught in PojoMessageHandlerWholeBase<T>.onMessage
Thread-Index: Ac7Mx8+wkBpqsf3cQM2V6KDEDuha/QAF06DQ
Date: Sat, 19 Oct 2013 15:24:04 +0000
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I have re-posted to DEV so please disregard

From: Bob DeRemer [mailto:bob.deremer@thingworx.com]
Sent: Saturday, October 19, 2013 8:46 AM
To: Tomcat Users List
Subject: possible tomcat 7.0.47 jsr-356 bug: NULL pointer being thrown when=
 DecodeException is caught in PojoMessageHandlerWholeBase<T>.onMessage

I am testing what happens when Encode/Decode Exceptions occur during JSR-35=
6 communication and found that in the following code in onMessage, the ((Ws=
Session)session) is NULL.  As a result, the actual DecodeException (cause) =
is lost.

       // Can this message be decoded?
        Object payload;
        try {
            payload =3D decode(message);
        } catch (DecodeException de) {
            ((WsSession) session).getLocal().onError(session, de);
            return;
        }


Tracing this further up the stack, I found that Util.getMessageHandlers is =
initializing it and passing NULL in for the session:

            if (decoderMatch.getTextDecoders().size() > 0) {
                MessageHandlerResult result =3D new MessageHandlerResult(
                        new PojoMessageHandlerWholeText(listener, m, null,
                                endpointConfig,
                                decoderMatch.getTextDecoders(), new Object[=
1],
                                0, false, -1, -1),
                        MessageHandlerResultType.TEXT);
                results.add(result);
            }

Is this a bug, or do I need to do something else to get this internal sessi=
on initialize - in addition to calling: addMessageHandler(this) in the onOp=
en of my Endpoint-derived class?

Thanks,


Bob DeRemer
Senior Director, Architecture and Development

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3DE.51A12030]
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Skype: bob.deremer.thingworx
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M: 717.881.3986


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