Github user felixcheung commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/686#issuecomment-179030306
This Travis looks strange? Has this test been failing?
```
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 7.125 sec
<<< FAILURE! - in org.apache.zeppelin.spark.DepInterpreterTest
testDefault(org.apache.zeppelin.spark.DepInterpreterTest) Time elapsed:
7.051 sec <<< ERROR!
java.lang.NullPointerException: null
at
org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:352)
at
org.apache.zeppelin.spark.dep.SparkDependencyContext.fetchArtifactWithDep(SparkDependencyContext.java:179)
at
org.apache.zeppelin.spark.dep.SparkDependencyContext.fetch(SparkDependencyContext.java:129)
at
org.apache.zeppelin.spark.DepInterpreter.interpret(DepInterpreter.java:220)
at
org.apache.zeppelin.spark.DepInterpreterTest.testDefault(DepInterpreterTest.java:96)
```
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