[jira] [Resolved] (DERBY-5617) Improve process handling in SpawnedProcess

["Kristian Waagan (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-5617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kristian Waagan resolved DERBY-5617.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.8.2.3

Backported to 10.8, together with DERBY-5608, with revision 1327102.
Resolving issue.
                
> Improve process handling in SpawnedProcess
> ------------------------------------------
>
>                 Key: DERBY-5617
>                 URL: https://issues.apache.org/jira/browse/DERBY-5617
>             Project: Derby
>          Issue Type: Improvement
>          Components: Test
>    Affects Versions: 10.9.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>             Fix For: 10.8.2.3, 10.9.0.0
>
>         Attachments: derby-5617-1a-spawnedprocess_improvements.diff, derby-5617-2a-join_destroy_ordering.diff, derby-5617-3a-timer_as_daemon_thread.diff
>
>
> SpawnedProcess wraps a java.lang.Process and performs various tasks related to process handling. Using external processes from Java is somewhat tricky, in part because of sub-optimal behavior in the methods provided by Process.
> I plan to implement the following improvements:
>  a) Kill the process after a timeout (the clock starts ticking when you create the SpawnedProcess instance).
>  b) Don't let interrupts stop SpawnedProcess from waiting for / terminating the process.
>  c) Clean up the Process properly.

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