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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5819) Add logic to BaseTestCase to start subprocesses ready to be attached to from a Java debugger
Date Mon, 02 Jul 2012 20:28:48 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13405309#comment-13405309

Dag H. Wanvik commented on DERBY-5819:

Committed version d as svn 1356457. Commit log:

Adds options to allow this capability for Oracle Java (properties below
ignored for other implementations):

derby.test.debugPortBase=<int> default 8800
derby.test.debugSubProcesses=<boolean> default false 
derby.test.debugSuspend=<y|n> default 'y' 

If several subprocesses are created, the port for subprocess two will be
debugPortBase + 1 (i.e. 8801 by default) etc.

> Add logic to BaseTestCase to start subprocesses ready to be attached to from a Java debugger
> --------------------------------------------------------------------------------------------
>                 Key: DERBY-5819
>                 URL: https://issues.apache.org/jira/browse/DERBY-5819
>             Project: Derby
>          Issue Type: Improvement
>          Components: Test
>            Reporter: Dag H. Wanvik
>            Assignee: Dag H. Wanvik
>            Priority: Minor
>         Attachments: derby-5819.diff, derby-5819b.diff, derby-5819c.diff, derby-5819d.diff
> Sometimes it's useful to be able to attach to subprocesses of tests with a debugger.
> Now that we have centralized subprocess creation in BaseTestCase#execJavaCmd it would
be easy and useful to have subprocesses start, but wait for a debugger to attach to them,
i.e. with these options on an Oracle VM:
> -Xdebug -Xrunjdwp:transport=dt_socket,address=<port>,server=y,suspend=y

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