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Posted to issues@karaf.apache.org by "Mike Hummel (Jira)" <ji...@apache.org> on 2020/06/13 20:43:00 UTC
[jira] [Commented] (KARAF-6764) Compilation with OpenJDK 11 failed
because of Unit tests with JPM
[ https://issues.apache.org/jira/browse/KARAF-6764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134949#comment-17134949 ]
Mike Hummel commented on KARAF-6764:
------------------------------------
After debugging the problem it looks like the child process is switching into zombi mode for some reasons. It's a problem in docker containers, search for "docker java defunct"
The process list shows the following:
3100 pts/0 00:00:00 java <defunct>
or with stat:
501 3100 0000000000000100 0000000000000004 0000000000000003 2000000181005ccc Z pts/0 0:00 [java] <defunct>
A solution is to check for status zombi in isRunning().
> Compilation with OpenJDK 11 failed because of Unit tests with JPM
> -----------------------------------------------------------------
>
> Key: KARAF-6764
> URL: https://issues.apache.org/jira/browse/KARAF-6764
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.3.0
> Environment: user@deploy-mhus:~/karaf$ java --version
> openjdk 11.0.2 2019-01-15
> OpenJDK Runtime Environment (build 11.0.2+9-Debian-3bpo91)
> OpenJDK 64-Bit Server VM (build 11.0.2+9-Debian-3bpo91, mixed mode, sharing)
> user@deploy-mhus:~/karaf$ uname -a
> Linux deploy-mhus 3.10.0-1062.9.1.el7.x86_64 #1 SMP Fri Dec 6 15:49:49 UTC 2019 x86_64 GNU/Linux
> user@deploy-mhus:~/karaf$
>
> Inside a docker container.
> Reporter: Mike Hummel
> Priority: Major
>
> JUnit Failed
>
> [INFO] -------------------------------------------------------
> [INFO] T E S T S
> [INFO] -------------------------------------------------------
> [INFO] Running org.apache.karaf.jpm.ProcessTest
> /usr/lib/jvm/java-11-openjdk-amd64/bin/java
> Executing: "/usr/lib/jvm/java-11-openjdk-amd64/bin/java" -Dprop="key" -classpath /home/user/karaf/instance/target/test-classes/ org.apache.karaf.jpm.MainTest 60000
> Process: 4398
> Running: true
> Destroying
> Running: true
> [ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.149 s <<< FAILURE! - in org.apache.karaf.jpm.ProcessTest
> [ERROR] testCreate(org.apache.karaf.jpm.ProcessTest) Time elapsed: 2.104 s <<< FAILURE!
> junit.framework.AssertionFailedError
> at org.apache.karaf.jpm.ProcessTest.testCreate(ProcessTest.java:57)
> in
> [INFO] Apache Karaf :: Instance :: Core ................... FAILURE [ 7.811 s]
>
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