GitHub user prabhjyotsingh opened a pull request:
https://github.com/apache/zeppelin/pull/1154
[ZEPPELIN-1136] NPE in Zeppelin Logs
### What is this PR for?
Access Zeppelin without configuring any security, Zeppelin shows anoymous
user and notice the NPE in Zeppelin logs.
```
ERROR [2016-07-08 17:45:17,879] ({qtp1800659519-45}
SecurityRestApi.java[getUserList]:120) - Exception in retrieving Users from
realms
java.lang.NullPointerException
at org.apache.zeppelin.rest.GetUserList.getUserList(GetUserList.java:60)
at
org.apache.zeppelin.rest.SecurityRestApi.getUserList(SecurityRestApi.java:108)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:180)
at
org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)
```
### What type of PR is it?
[Bug Fix]
### What is the Jira issue?
* [ZEPPELIN-1136](https://issues.apache.org/jira/browse/ZEPPELIN-1136)
### How should this be tested?
Have shiro.ini with just following (minimal) content
```
[urls]
/api/version = anon
/** = anon
#/** = authc
```
and observe in logs, there should be no error logs.
### Questions:
* Does the licenses files need update? n/a
* Is there breaking changes for older versions? n/a
* Does this needs documentation? n/a
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/prabhjyotsingh/zeppelin ZEPPELIN-1136
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1154.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1154
----
commit af461f0a4fb52e5824c688fbf499fbfaa8795cdf
Author: Prabhjyot Singh <prabhjyotsi...@gmail.com>
Date: 2016-07-08T12:25:27Z
ZEPPELIN-1136 NPE in Zeppelin Logs
----
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