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From Rob Godfrey <rob.j.godf...@gmail.com>
Subject Re: NPE in Receiver$1.remoteDetached() with AMQP 1.0 and Service Bus
Date Mon, 24 Feb 2014 15:55:55 GMT
Hi Jan,

are you sure you are using version 0.26 of the client?

Looking at your stack trace I can see SessionEndpoint.detachLinks() calling
SessionEndpoint.detach() from line 192 of SessionEndpoint.

This seems to be an instance of this defect:
https://issues.apache.org/jira/browse/QPID-5206 for which a fix was
released in 0.26 (looking at the line numbers in the files it's clear that
the exception you are seeing is from the codebase in trunk prior to 24th
October 2013 when this fix was applied)/

-- Rob


On 24 February 2014 16:41, Jan Bares <jan.bares@wood.cz> wrote:

> Hi,
>
> I am testing QPID Java JMS client 0.26 against Microsoft Service Bus. I
> run queue consumer in one process, consumes messages. In another process I
> run publisher, publisher produces 10000 small messages. Approximately at
> the time producer finishes its work, I get NPE in consumer. The consumer
> later hangs in connection close method. The problem doesn't happen when I
> first feed the messages to broker and then read them, both processes must
> run concurrently. Also the problem doesn't happen for small number of
> messages like 1000 but 10000 seems to be enough. Same code tested with AMQP
> 0-10 and MRG 2.3 without problem.
>
> Kind regards, Jan
>
> 00 53 17 c0 02 01 40
> java.lang.NullPointerException
>         at
> org.apache.qpid.amqp_1_0.client.Receiver$1.remoteDetached(Receiver.java:128)
>         at
> org.apache.qpid.amqp_1_0.transport.LinkEndpoint.remoteDetached(LinkEndpoint.java:171)
>         at
> org.apache.qpid.amqp_1_0.transport.SessionEndpoint.detach(SessionEndpoint.java:290)
>         at
> org.apache.qpid.amqp_1_0.transport.SessionEndpoint.detachLinks(SessionEndpoint.java:192)
>         at
> org.apache.qpid.amqp_1_0.transport.SessionEndpoint.end(SessionEndpoint.java:165)
>         at
> org.apache.qpid.amqp_1_0.transport.ConnectionEndpoint.receiveEnd(ConnectionEndpoint.java:511)
>         at org.apache.qpid.amqp_1_0.type.transport.End.invoke(End.java:75)
>         at
> org.apache.qpid.amqp_1_0.transport.ConnectionEndpoint.receive(ConnectionEndpoint.java:652)
>         at
> org.apache.qpid.amqp_1_0.framing.FrameHandler.parse(FrameHandler.java:242)
>         at
> org.apache.qpid.amqp_1_0.framing.ConnectionHandler.parse(ConnectionHandler.java:70)
>         at
> org.apache.qpid.amqp_1_0.client.Connection.doRead(Connection.java:381)
>         at
> org.apache.qpid.amqp_1_0.client.Connection.access$000(Connection.java:42)
>         at
> org.apache.qpid.amqp_1_0.client.Connection$2.run(Connection.java:244)
>         at java.lang.Thread.run(Thread.java:744)
> Exception in thread "Thread-2" java.lang.NullPointerException
>         at
> org.apache.qpid.amqp_1_0.client.Receiver$1.remoteDetached(Receiver.java:128)
>         at
> org.apache.qpid.amqp_1_0.transport.LinkEndpoint.remoteDetached(LinkEndpoint.java:171)
>         at
> org.apache.qpid.amqp_1_0.transport.SessionEndpoint.detach(SessionEndpoint.java:290)
>         at
> org.apache.qpid.amqp_1_0.transport.SessionEndpoint.detachLinks(SessionEndpoint.java:192)
>         at
> org.apache.qpid.amqp_1_0.transport.SessionEndpoint.end(SessionEndpoint.java:165)
>         at
> org.apache.qpid.amqp_1_0.transport.ConnectionEndpoint.receiveEnd(ConnectionEndpoint.java:511)
>         at org.apache.qpid.amqp_1_0.type.transport.End.invoke(End.java:75)
>         at
> org.apache.qpid.amqp_1_0.transport.ConnectionEndpoint.receive(ConnectionEndpoint.java:652)
>         at
> org.apache.qpid.amqp_1_0.framing.FrameHandler.parse(FrameHandler.java:242)
>         at
> org.apache.qpid.amqp_1_0.framing.ConnectionHandler.parse(ConnectionHandler.java:70)
>         at
> org.apache.qpid.amqp_1_0.client.Connection.doRead(Connection.java:381)
>         at
> org.apache.qpid.amqp_1_0.client.Connection.access$000(Connection.java:42)
>         at
> org.apache.qpid.amqp_1_0.client.Connection$2.run(Connection.java:244)
>         at java.lang.Thread.run(Thread.java:744)
>
>
> Jan Bareš
> Calypso Lead Developer
>
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