[ http://issues.apache.org/jira/browse/DERBY-1571?page=all ]
Knut Anders Hatlen updated DERBY-1571:
--------------------------------------
Derby Info: [Patch Available]
> NetworkServerControlImpl.consoleExceptionPrintTrace() prints stack trace even
> when logWriter is null
> ----------------------------------------------------------------------------------------------------
>
> Key: DERBY-1571
> URL: http://issues.apache.org/jira/browse/DERBY-1571
> Project: Derby
> Issue Type: Bug
> Components: Network Server, Newcomer, Regression Test Failure
> Affects Versions: 10.2.0.0
> Reporter: Knut Anders Hatlen
> Assigned To: Knut Anders Hatlen
> Priority: Minor
> Attachments: 1571.diff
>
>
> NetworkServerControlImpl.consoleExceptionPrintTrace() prints the stack
> trace to System.err if logWriter is null. This has occasionally caused
> errors in the regression tests. See
> http://www.multinet.no/~solberg/public/Apache/10.2.0.3_Snapshot/jvm1.5/testlog/sparc_zone3/412239-derbyall_diff.txt
> for an example.
> The test failure happens when NetworkServerControlImpl.shutdown() has
> sent the shutdown command and starts a loop calling ping() until it
> gets an error. Since it expects ping() to fail, it sets logWriter to
> null to avoid getting error messages printed on the console.
> In most cases, the network server is already stopped before the first
> call to ping(). Then ping() fails when calling setUpSocket(), and no
> message is printed. On the other hand, if the server is stopped while
> ping() is being executed, the error might occur other places. For
> instance, it might fail with a SocketException in
> fillReplyBuffer(). fillReplyBuffer() then calls clientSocketError(),
> which in turn calls consolePropertyMessage() and
> consoleExceptionPrintTrace(). consolePropertyMessage() correctly
> suppresses the error message, but consoleExceptionPrintTrace() prints
> the stack trace.
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