Github user bzz commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/465#issuecomment-159453621 @astroshim Sure! Zeppelin project agreed to adhere this styleguide for Java language https://google.github.io/styleguide/javaguide.html We encourage all contributors to read this document carefully. It means that all the code in the project should be formatted according rules of that guide. Some of them are enforced through the build system (using checkstyle maven plugin), like max length of the line - that is why you had "whitespace\lineLength build error". Some rules are not enforced automatically, but are a good practices to follow. This is one of the reasons to have a "code review" in PullRequests here. Your code looks great, but there are still a few cases where formatting that can be improved before merging, i.e [horizontal whitespaing](https://google.github.io/styleguide/javaguide.html#s4.6.2-horizontal-whitespace) Things like ```java while(paragraph.getStatus() == Status.PENDING) ... ``` according to the link above should look like ```java while (paragraph.getStatus() == Status.PENDING) ... ``` Another thing to check is [vertical whitespace](https://google.github.io/styleguide/javaguide.html#s4.6.1-vertical-whitespace) - an empty line between two consecutive method fields of the class (fields, methods). Please let me know if it that helps!
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