Github user fvaleri commented on the issue:
https://github.com/apache/zeppelin/pull/1087
Another CI job failed even this time on zeppelin-web module.
One is still running but it is very slow (32 min now).
```
[ERROR] Failed to execute goal
com.github.eirslett:frontend-maven-plugin:0.0.25:bower (bower install) on
project zeppelin-web: Failed to run task: 'bower --allow-root install' failed.
(error code 1) -> [Help 1]
```
Anyway, [this one](https://travis-ci.org/apache/zeppelin/builds/141304231)
passed and it's the same code, except for a couple on unused imports that I
removed.
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