GitHub user minahlee opened a pull request:
https://github.com/apache/zeppelin/pull/1191
[ZEPPELIN-1186] Prevent NPE when unbind interpreter
### What is this PR for?
Unbinding interpreter from note throws NPE when paragraph repl is not set.
### What type of PR is it?
Bug Fix
### What is the Jira issue?
[ZEPPELIN-1186](https://issues.apache.org/jira/browse/ZEPPELIN-1186)
### How should this be tested?
1. Create notebook
2. type '%fake ' including space at the end
3. Unbind spark interpreter from note binding and hit save
4. Unbind all interpreter and hit save
5. See if you can save the interpreter bind without error
### Screenshots (if appropriate)
**Before**
**After**
### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/minahlee/zeppelin ZEPPELIN-1186
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1191.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 #1191
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commit 3434e88c0d74e13718f8eb97e9a9deab091b1511
Author: Mina Lee <mina...@apache.org>
Date: 2016-07-15T09:06:50Z
Prevent NPE when unbind interpreter
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