Github user 1ambda commented on the issue:
https://github.com/apache/zeppelin/pull/2363
Helium feature doesn't work after this PR.
- cloned new zeppelin repository
- built ` mvn clean package -DskipTests;`
- started zeppelin instance
- then got this error.
```
ERROR [2017-05-30 17:23:55,117] ({main} ZeppelinServer.java[<init>]:145) -
java.lang.NullPointerException
at java.net.URI$Parser.parse(URI.java:3023)
at java.net.URI.<init>(URI.java:595)
at
org.apache.zeppelin.helium.HeliumOnlineRegistry.getProxy(HeliumOnlineRegistry.java:123)
at
org.apache.zeppelin.helium.HeliumOnlineRegistry.getAll(HeliumOnlineRegistry.java:71)
at org.apache.zeppelin.helium.Helium.getAllPackageInfo(Helium.java:190)
```
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