[GitHub] [zeppelin] bd2019us opened a new pull request #3349: [ZEPPELIN-4124] Use optJSONArray to avoid exception

[GitBox <gi...@apache.org>]

bd2019us opened a new pull request #3349: [ZEPPELIN-4124] Use optJSONArray  to avoid exception
URL: https://github.com/apache/zeppelin/pull/3349
 
 
   ### What is this PR for? 
   Avoid unexpected JSONException if no key exist.
   
   
   ### What type of PR is it?
   [Bug Fix | Improvement | Feature | Documentation | Hot Fix | Refactoring]
   BugFix
   ### Todos
   * [ ] - Task
   
   ### What is the Jira issue?
   * Open an issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN/
   * Put link here, and add [ZEPPELIN-*Jira number*] in PR title, eg. [ZEPPELIN-533]
   
   https://issues.apache.org/jira/browse/ZEPPELIN-4124
   
   ### How should this be tested?
   * First time? Setup Travis CI as described on https://zeppelin.apache.org/contribution/contributions.html#continuous-integration
   * Strongly recommended: add automated unit tests for any new or changed behavior
   * Outline any manual steps to test the PR here.
   
   ### Screenshots (if appropriate)
   
   ### Questions:
   * Does the licenses files need update?
   * Is there breaking changes for older versions?
   * Does this needs documentation?
   

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