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https://issues.apache.org/jira/browse/QPID-6451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14566791#comment-14566791
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Keith Wall commented on QPID-6451:
----------------------------------
Alex, can you review this commit please?
> ProtocolVersionException exception logged at error as Java Client downgrades
> from 0-10
> --------------------------------------------------------------------------------------
>
> Key: QPID-6451
> URL: https://issues.apache.org/jira/browse/QPID-6451
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.32
> Reporter: Keith Wall
> Assignee: Alex Rudyy
> Priority: Minor
> Fix For: 6.0 [Java]
>
>
> Since QPID-6350, the Java Client 0-10 has been logging ConnectionExceptions
> at SLF4J error. Unfortunately this change also causes
> ProtocolVersionException (and RedirectConnectionException) to be logged too.
> These exceptions don't represent true error conditions, so logging them at
> error is inappropriate.
> Whilst this change does not cause a functional issue, it has the potential to
> confuse users and can unnecessarily pollute logs.
> {noformat}
> 2015-03-14 18:40:13,562 ERROR [IoReceiver-localhost/127.0.0.1:15672]
> (transport.Connection) - exception: version mismatch: 0-9
> org.apache.qpid.transport.ProtocolVersionException: version mismatch: 0-9
> at
> org.apache.qpid.transport.ClientDelegate.init(ClientDelegate.java:61)
> at
> org.apache.qpid.transport.ClientDelegate.init(ClientDelegate.java:44)
> at
> org.apache.qpid.transport.ProtocolHeader.delegate(ProtocolHeader.java:110)
> at org.apache.qpid.transport.Connection.received(Connection.java:416)
> at org.apache.qpid.transport.network.Assembler.emit(Assembler.java:98)
> at
> org.apache.qpid.transport.network.Assembler.init(Assembler.java:118)
> at
> org.apache.qpid.transport.ProtocolHeader.delegate(ProtocolHeader.java:115)
> at
> org.apache.qpid.transport.network.Assembler.received(Assembler.java:103)
> at
> org.apache.qpid.transport.network.InputHandler.next(InputHandler.java:163)
> at
> org.apache.qpid.transport.network.InputHandler.received(InputHandler.java:115)
> at
> org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:161)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
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