Github user iijima-satoshi commented on the issue:
https://github.com/apache/zeppelin/pull/2904
I retried the tests and got another error
ci: https://travis-ci.org/iijima-satoshi/zeppelin/builds/362086204
```
[ERROR] Failed to execute goal
net.alchim31.maven:scala-maven-plugin:3.2.2:compile (scala-compile-first) on
project zeppelin-flink_2.10: wrap: org.apache.commons.exec.ExecuteException:
Process exited with an error: 1 (Exit value: 1) -> [Help 1]
```
This error might be solved by #2811---
