KirillTurchinskii opened a new pull request #3759: URL: https://github.com/apache/zeppelin/pull/3759
### What is this PR for? Some code refactoring is done, annotations added, and some of warnings has been removed ### What type of PR is it? Refactoring ### Todos Refactoring and Annotations added ###What is the Jira issue? https://issues.apache.org/jira/browse/ZEPPELIN-3225?filter=12348928 ### 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? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
