Github user cloverhearts commented on the issue:
https://github.com/apache/zeppelin/pull/1753
CI failed.
However, this is a not relate to modifications.
```
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-surefire-plugin:2.17:test (default-test) on
project zeppelin-pig: Execution default-test of goal
org.apache.maven.plugins:maven-surefire-plugin:2.17:test failed: The forked VM
terminated without properly saying goodbye. VM crash or System.exit called?
[ERROR] Command was /bin/sh -c cd /home/travis/build/apache/zeppelin/pig &&
/usr/lib/jvm/java-7-oracle/jre/bin/java -Xmx2g -Xms1g -Dfile.encoding=UTF-8
-jar
/home/travis/build/apache/zeppelin/pig/target/surefire/surefirebooter6134435344985761979.jar
/home/travis/build/apache/zeppelin/pig/target/surefire/surefire308229830701668274tmp
/home/travis/build/apache/zeppelin/pig/target/surefire/surefire_331449743848135082457tmp
[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 :zeppelin-pig
```
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