Github user echarles commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/831#issuecomment-208932745
```
org.apache.zeppelin.rest.SecurityRestApiTest Time elapsed: 180.035 sec
<<< ERROR!
java.lang.UnsupportedClassVersionError:
org/eclipse/jetty/server/HttpConfiguration$Customizer : Unsupported major.minor
version 52.0
```
This PR builds fine but fails on test as jetty9 is built for JDK-1.8 [1]
Time to move on to JDK-1.8?
[1]
http://central.maven.org/maven2/org/eclipse/jetty/jetty-project/9.3.7.v20160115/jetty-project-9.3.7.v20160115.pom
```
<profile><id>eclipse-release</id><modules><module>aggregates/jetty-all</module></modules><build><plugins><plugin><artifactId>maven-compiler-plugin</artifactId><configuration><source>1.8</source><target>1.8</target>
...
```
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