Github user bzz commented on the issue:
https://github.com/apache/zeppelin/pull/1009
@OutOfBedlam thank you for catching this and contributing the improvement!
Before merging, could you please check that your code follows [project code
style
guide](https://github.com/apache/zeppelin/blob/master/CONTRIBUTING.md#code-convention)
esp regardin [optional braces in
Java](https://google.github.io/styleguide/javaguide.html#s4.1.1-braces-always-used)?
CI failure seems un-related
```
Running org.apache.zeppelin.rest.ZeppelinSparkClusterTest
...
01:44:57,921 INFO
org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess:143 - Run
interpreter process [..//bin/interpreter.sh, -d, ../interpreter/spark, -p,
45995, -l, ..//local-repo/2BMVKYY9A]
..//bin/interpreter.sh: line 159:
/home/travis/build/apache/zeppelin/run/zeppelin-interpreter-spark-travis-testing-worker-linux-docker-b1d10849-3384-linux-9.pid:
No such file or directory
...
1:46:16,709 INFO org.apache.zeppelin.socket.NotebookServer:1116 - Job
20160614-014616_1473888867 is finished
Spark version detected 1.6.1
01:46:16,728 INFO org.apache.zeppelin.notebook.Paragraph:241 - run
paragraph 20160614-014616_1069054480 using r
org.apache.zeppelin.interpreter.LazyOpenInterpreter@3af54c62
No output has been received in the last 10 minutes, this potentially
indicates a stalled build or something wrong with the build itself.
The build has been terminated
```
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