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https://issues.apache.org/jira/browse/QPID-1655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12672023#action_12672023
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Robert Gemmell commented on QPID-1655:
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This can be resolved with a rudimentary fix of changing Line 396 to not use the
absolute file location from _accessFileName. However, a more appropriate fix
would be to update the saveaccessfile method to report success to the calling
methods rather than it being assumed as present, and the calling methods
updated to take appropriate action in the event it should fail. Additionally a
test should be added to ensure changes are written to the file. I will do this
later in the week.
> AMQUserManagementMBean is unable to save the jmx user access rights file, but
> does not signal this to calling methods
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-1655
> URL: https://issues.apache.org/jira/browse/QPID-1655
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: M4
> Reporter: Robert Gemmell
> Fix For: M5
>
>
> AMQUserManagementMBean is unable to save the jmx user access rights file,
> however it does not report this to the calling methods and so no error is
> reported. The changes may appear to take effect because the cached values are
> updated.
> On line 396 within the saveaccessfile method, _accessFileName is used as the
> prefix to create a temporary file, however _accessFileName contains an
> absolute filesystem path and its use causes an FileNotFound IOException,
> which the method catches and then does nothing with except output a log
> message, so the calling methods are unaware the save has failed:
> 2009-02-09 10:23:28,608 WARN [RMI TCP Connection(4)-127.0.1.1]
> management.AMQUserManagementMBean (AMQUserManagementMBean.java:413) - Problem
> occured saving
> '/home/gemmellr/workspace/eclipse/qpid_trunk/qpid/java/build/etc/jmxremote.access'
> changes may not be preserved. :java.io.IOException: No such file or directory
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