Github user jongyoul commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/731#issuecomment-186656231
That failure looks related other tests that set some properties like
`System.setProperty(ConfVars.ZEPPELIN_NOTEBOOK_DIR.getVarName(),
mainNotebookDir.getAbsolutePath());`
I think it could be resolved simply by using
`System.clearProperty(ConfVars.ZEPPELIN_NOTEBOOK_DIR.getVarName())` before
creating ZeppelinConfiguration.
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