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From "Tibor Digana (JIRA)" <>
Subject [jira] (SUREFIRE-524) Forked Process not terminated if maven process aborted. Provide means to clean up.
Date Thu, 01 Jan 2015 15:00:10 GMT


Tibor Digana reassigned SUREFIRE-524:

    Assignee: Tibor Digana

> Forked Process not terminated if maven process aborted. Provide means to clean up.
> ----------------------------------------------------------------------------------
>                 Key: SUREFIRE-524
>                 URL:
>             Project: Maven Surefire
>          Issue Type: New Feature
>          Components: process forking
>    Affects Versions: 2.4.3
>         Environment: Windows XP, JDK 6
>            Reporter: Jason Zaugg
>            Assignee: Tibor Digana
>            Priority: Minor
>         Attachments: surefire-2.4.3-remote-shutdown.patch, surefire-2.4.3-remote-shutdown.patch
> Steps to reproduce:
> forkMode = once
> Run a test suite containing: Thread.sleep(Integer.MAX_VALUE)
> Kill maven build
> Observe that surefire JVM still running.
> Use Case:
> 1. Maven build on Contiunous Integration server forks a JVM to run long test suite.
> 2. User aborts the build.
> 3. User expects the test suite to be aborted.
> Workarounds:
> * use forkMode=never
> This is a hassle for us -- at best we have to log in remotely to the build server, find
the process and kill it. At worst, we waste time misdiagnosing failures in the subsequently
triggered build that are due to concurrent tests executing.
> I'm not sure what the expected behaviour is for maven / surefire currently in this situation.

> It is likely that is platform dependent. Windows is different from Unix in the way it
kills child processes. [1]
> One solution would be to open up a TCP port on the forked JVM to enable a remote shutdown.
This would integrate well with the Hudson Port Allocator plugin [2]. At the conclusion of
an aborted build, Hudson would clean up the forked surefire JVM. Perhaps surefire itself could
register a shutdown hook in the maven JVM which would use attempt a remote shutdown of the
forked JVM?
> I've attached a patch to demonstrate the idea. If you would like to include this functionality,
I could clean it up and add test cases.
> [1]
> [2]
> <plugin>
>                 <groupId>org.apache.maven.plugins</groupId>
>                 <artifactId>maven-surefire-plugin</artifactId>
>                 <version></version>
>                 <configuration>
>                     <excludes>
>                         <exclude>${integration.test.pattern}</exclude>
>                     </excludes>
>                     <forkMode>once</forkMode>
>                     <remoteShutdownPort>8999</remoteShutdownPort>
>                 </configuration>

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