GitHub user benoyantony opened a pull request:
https://github.com/apache/zeppelin/pull/2310
ZEPPELIN-2484 do a Null check before calling trim on paragraph's text
### What is this PR for?
Prevent NullPointerException during check to determine whether a new
paragraph needs to added.
The fix is to switch order of null check and trim operation so that null
check is performed before trim()
### What type of PR is it?
Bug Fix
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-2484
### How should this be tested?
This can be tested with a hive interpreter
Create a note and add a paragraph with some query in it.
Run all paragraphs.
A new paragraph is automatically added.
Run all paragraphs again. A NullPointerException is logged in the logs.
### Screenshots (if appropriate)
### 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/benoyantony/zeppelin ZEPPELIN-2484
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/2310.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 #2310
----
commit 09e956e0ccc7d5522857fdece5d2232239085f65
Author: Benoy Antony <[email protected]>
Date: 2017-05-02T22:17:44Z
ZEPPELIN-2484 do a Null check before calling trim on paragraph's text
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