[ 
https://issues.apache.org/jira/browse/QPID-6001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rob Godfrey updated QPID-6001:
------------------------------

    Fix Version/s:     (was: 0.31)
                   0.30

> Prevent NPE when publishing using ADDR destination to Broker using AMQP 0-9-1 
> or lower 
> ---------------------------------------------------------------------------------------
>
>                 Key: QPID-6001
>                 URL: https://issues.apache.org/jira/browse/QPID-6001
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Client
>    Affects Versions: 0.16, 0.18, 0.20, 0.22, 0.24, 0.26, 0.28
>            Reporter: Keith Wall
>            Assignee: Keith Wall
>             Fix For: 0.30
>
>
> If I try an run the Hello example (from qpid-client-examples) against a Java 
> Broker configured to use  AMQP 0-9-1 or lower, or Rabbit MQ, I receive the 
> following NPE:
> {noformat}
> java.lang.NullPointerException
>       at 
> org.apache.qpid.client.BasicMessageProducer_0_8.declareDestination(BasicMessageProducer_0_8.java:63)
>       at 
> org.apache.qpid.client.BasicMessageProducer.<init>(BasicMessageProducer.java:136)
>       at 
> org.apache.qpid.client.BasicMessageProducer_0_8.<init>(BasicMessageProducer_0_8.java:55)
>       at 
> org.apache.qpid.client.AMQSession_0_8.createMessageProducer(AMQSession_0_8.java:559)
>       at 
> org.apache.qpid.client.AMQSession_0_8.createMessageProducer(AMQSession_0_8.java:62)
>       at org.apache.qpid.client.AMQSession$7.execute(AMQSession.java:2613)
>       at org.apache.qpid.client.AMQSession$7.execute(AMQSession.java:2604)
>       at 
> org.apache.qpid.client.AMQConnectionDelegate_8_0.executeRetrySupport(AMQConnectionDelegate_8_0.java:333)
>       at 
> org.apache.qpid.client.AMQConnection.executeRetrySupport(AMQConnection.java:625)
>       at 
> org.apache.qpid.client.failover.FailoverRetrySupport.execute(FailoverRetrySupport.java:96)
>       at 
> org.apache.qpid.client.AMQSession.createProducerImpl(AMQSession.java:2602)
>       at 
> org.apache.qpid.client.AMQSession.createProducer(AMQSession.java:1175)
>       at org.apache.qpid.client.AMQSession.createProducer(AMQSession.java:93)
>       at org.apache.qpid.example.Hello.runTest(Hello.java:66)
>       at org.apache.qpid.example.Hello.main(Hello.java:48)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:606)
>       at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
> {noformat}
> This error was reported on users@q.a.o sometime ago.
> http://qpid.2158936.n2.nabble.com/Java-example-Hello-java-throws-NPE-td7581155.html



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