The forked VM terminated without saying properly goodbye

Hello everyone , I meet you again , I'm your friend, Quan Jun .

Always in use Maven Development projects , Recently I encountered a headache , The solution described in Chinese is not found in online search , I found an English website to understand the reason and solve the problem , So I wrote this article , For peer review .

stay maven Project use maven install On command , appear The forked VM terminated without saying properly goodbye abnormal , The specific problems are as follows ：

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 36.927 s
[INFO] Finished at: 2016-12-14T15:13:37+08:00
[INFO] Final Memory: 48M/351M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test (default-test) on project message-provider: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test failed: The forked VM terminated without properly saying goodbye. VM crash or System.exit called?
[ERROR] Command was /bin/sh -c cd /opt/f/.m2/gitlab-runner/builds/0aa902b1/0/paas/message/***-provider && /usr/java/jdk1.8.0_66/jre/bin/java -Xmx1024m -XX:MaxPermSize=256m -jar /opt/f/.m2/gitlab-runner/builds/0aa902b1/0/paas/message/message-provider/target/surefire/surefirebooter780447286825479042.jar /opt/f/.m2/gitlab-runner/builds/0aa902b1/0/paas/message/message-provider/target/surefire/surefire1560965759779144679tmp /opt/f/.m2/gitlab-runner/builds/0aa902b1/0/paas/message/essage-provider/target/surefire/surefire_09112026330459044785tmp
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :message-provider
Last login: Wed Dec 14 15:12:47 CST 2016

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I searched for it for a long time , I learned that when I was writing unit tests , At the end of the test, I wrote a line System.exit(0); It's caused vm Exit ahead of time , Remove and execute again maven install normal .

Solution , stay idea Use in Ctrl+Shift+R Find in project System.exit(0) Lines of code , Then delete it , Execute after deleting my project mvn install normal .

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