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https://issues.apache.org/jira/browse/DERBY-5607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210446#comment-13210446
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Rick Hillegas commented on DERBY-5607:
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Hi Kathey,
That might make sense and might eliminate other possible deadlocks in the VM.
On the other hand, Derby bootstrapping has proven to be very brittle and we
would want to think about this carefully. Unless we have evidence that there is
another deadlock in there, I would advice caution. Thanks.
> Deadlock in Java 5 VM when using NATIVE authentication with a client running
> in the same VM as the server
> ---------------------------------------------------------------------------------------------------------
>
> Key: DERBY-5607
> URL: https://issues.apache.org/jira/browse/DERBY-5607
> Project: Derby
> Issue Type: Bug
> Components: Network Client, Network Server, Services
> Affects Versions: 10.9.0.0
> Reporter: Rick Hillegas
> Assignee: Rick Hillegas
> Attachments: NASTHang.java, derby-5607-01-aa-userInternalDriver.diff
>
>
> A deadlock in the Java 5 VM hangs connection attempts if you are using NATIVE
> authentication with a client which runs in the same VM as the server. I will
> attach a test case which demonstrates this. This bug is implicated in the
> failures being discussed on https://issues.apache.org/jira/browse/DERBY-5601
> and was disclosed by the discussion on this email thread:
> http://old.nabble.com/-URGENT--Critical-test-situation-on-trunk-to33259629.html#a33259629
> The bug arises when NativeAuthenticationServiceImpl attempts a nested
> connection to the Credentials database during database creation. The nested
> connection is attempted in order to dertermine whether the user has
> system-wide privilege to create databases.
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