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From "Daniel John Debrunner (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1694) derbynet/testProperties.java hangs
Date Tue, 15 Aug 2006 04:39:14 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1694?page=all ]

Daniel John Debrunner updated DERBY-1694:
-----------------------------------------

    Attachment: derby1694diff.txt

Patch for review - I will commit after running more tests.

> derbynet/testProperties.java hangs
> ----------------------------------
>
>                 Key: DERBY-1694
>                 URL: http://issues.apache.org/jira/browse/DERBY-1694
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions: 10.3.0.0
>         Environment: Windows XP  IBM 142 JRE
>            Reporter: Daniel John Debrunner
>         Attachments: derby1694diff.txt
>
>
> The testProperties.execCmd() is used to fork a JVM and not handle its
> streams. This will cause problems, as indicated by the javadoc for Process.
> "The parent process uses these streams to feed input to and get output
> from the subprocess. Because some native platforms only provide limited
> buffer size for standard input and output streams, failure to promptly
> write the input stream or read the output stream of the subprocess may
> cause the subprocess to block, and even deadlock"

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