Github user zentol commented on the issue:
https://github.com/apache/flink/pull/5780
travis is still failing with mysterious error messages..
```
15:58:07.061 [ERROR] Failed to execute goal
org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (integration-tests)
on project flink-tests_2.11: ExecutionException: java.lang.RuntimeException:
The forked VM terminated without properly saying goodbye. VM crash or
System.exit called?
15:58:07.061 [ERROR] Command was /bin/sh -c cd
/home/travis/build/apache/flink/flink-tests/target &&
/usr/lib/jvm/java-8-oracle/jre/bin/java -Xms256m -Xmx2048m -Dmvn.forkNumber=1
-XX:+UseG1GC -jar
/home/travis/build/apache/flink/flink-tests/target/surefire/surefirebooter5397929458643043612.jar
/home/travis/build/apache/flink/flink-tests/target/surefire/surefire4818404066082555175tmp
/home/travis/build/apache/flink/flink-tests/target/surefire/surefire_1027420331622776884606tmp
```
---
