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https://issues.apache.org/jira/browse/QPID-7189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Rudyy resolved QPID-7189.
------------------------------
Resolution: Fixed
The change made in commit under revision [https://svn.apache.org/r1738271]
looks good to me. We need to port fixes into 6.0.x
> [Java Client 0-8..0-10] Client fails to create delegate for AMQP 0.9.1 in
> response to broker supported protocol received during protocol negotiation
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-7189
> URL: https://issues.apache.org/jira/browse/QPID-7189
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.32, qpid-java-6.0, qpid-java-6.0.1
> Reporter: Alex Rudyy
> Assignee: Keith Wall
> Priority: Minor
> Fix For: qpid-java-6.0.2, qpid-java-6.1
>
> Attachments:
> 0001-QPID-7189-Rename-connection-delegates-to-match-proto.patch
>
>
> If broker replies with AMQP 0.9.1 during protocol negotiation, the client is
> not able to create a delegate as it is looking for delegate using the code
> below:
> {code}
> String delegateClassName =
> String.format("org.apache.qpid.client.AMQConnectionDelegate_s_%s",
> pe.getMajorVersion(), pe.getMinorVersion());
> {code}
> There is no delegate AMQConnectionDelegate_0_91
> The client fails with exception as below:
> {noformat}
> Exception in thread "main" javax.jms.JMSException: Error creating connection:
> Protocol: 0.91 is rquired by the broker but is not currently supported by
> this client library implementation
> at
> org.apache.qpid.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:134)
> at
> org.apache.qpid.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:57)
> at org.apache.qpid.example.Hello.runTest(Hello.java:50)
> at org.apache.qpid.example.Hello.main(Hello.java:36)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> Caused by: org.apache.qpid.AMQProtocolException: Protocol: 0.91 is rquired by
> the broker but is not currently supported by this client library
> implementation [error code 543: client unsupported protocol]
> at
> org.apache.qpid.client.AMQConnection.initDelegate(AMQConnection.java:626)
> at
> org.apache.qpid.client.AMQConnection.makeConnection(AMQConnection.java:521)
> at org.apache.qpid.client.AMQConnection.<init>(AMQConnection.java:474)
> at
> org.apache.qpid.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:130)
> ... 8 more
> Caused by: java.lang.ClassNotFoundException:
> org.apache.qpid.client.AMQConnectionDelegate_0_91
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:264)
> at
> org.apache.qpid.client.AMQConnection.initDelegate(AMQConnection.java:616)
> ... 11 more
> {noformat}
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