Github user cloverhearts commented on the issue:
https://github.com/apache/zeppelin/pull/2578
The problem of CI is irrelevant to this pr.
```
Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 12.462 sec
<<< FAILURE! - in
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServerTest
testStartStop(org.apache.zeppelin.interpreter.remote.RemoteInterpreterServerTest)
Time elapsed: 10.043 sec <<< FAILURE!
java.lang.AssertionError: expected:<true> but was:<false>
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.failNotEquals(Assert.java:834)
at org.junit.Assert.assertEquals(Assert.java:118)
at org.junit.Assert.assertEquals(Assert.java:144)
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServerTest.testStartStop(RemoteInterpreterServerTest.java:62)
```
---
