[SUREFIRE-1132] Surefire: regular isolated classloader failures in parallelbuild

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.17, 2.18.1
• Component/s: classloading
• Environment: SLES 3.0.80-0.7-default SMP x86_64 GNU/Linux; windows server 2008 x64; Maven 3.2.2, 3.2.3, 3.2.5; Oracle HotSpot JDK 7u25/7u65/8u25
• Assignee: Tibor Digana
• Reporter: Alexander Ashitkin
• Created: 26/Dec/14 17:24
• Updated: 08/Jan/15 05:38
• Resolved: 08/Jan/15 05:38

Description

We have a large project of 300+ modules which regularly fails with different kind of classloading issues in different places in surefire plugin. The issue is reproduced only with parallel build and is not reproduced in single threaded. This is a main contributor in build instability for us. All the not loaded dependnecies are actually present in dependency tree. I attached 3 different samples of how build fails.
Surefire config:

                    <configuration>
                        <forkCount>0</forkCount>
                        <!--doesnt work in parrallel build. Causes build failures with error java.io.IOException: Stream Closed-->                      <redirectTestOutputToFile>false</redirectTestOutputToFile>
                        <useManifestOnlyJar>false</useManifestOnlyJar>
                    </configuration>

maven cmd is like install -T 10
Please advise how to sort this out - ready to run any provided diagnostic and evaluate any options.

Thanks in advance, Alexander

Issue Links

• depends upon: MNG-5750 Sporadic failures in concurrent build