[5/5] zeppelin git commit: ZEPPELIN-3140. Fixed Checkstyle issues in zeppelin-server

ZEPPELIN-3140. Fixed Checkstyle issues in zeppelin-server ### What is this PR for? Fixed Checkstyle issues in zeppelin-server module. ### What type of PR is it? Improvement ### Todos * [ ] - Task ### What is the Jira issue? * https://issues.apache.org/jira/browse/ZEPPELIN-3140 ### How should t

[3/5] zeppelin git commit: ZEPPELIN-3140. Fixed Checkstyle issues in zeppelin-server

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/1add74b4/zeppelin-server/src/main/java/org/apache/zeppelin/socket/NotebookServer.java -- diff --git a/zeppelin-server/src/main/java/org/apache/zeppelin/socket/NotebookServer.jav

[4/5] zeppelin git commit: ZEPPELIN-3140. Fixed Checkstyle issues in zeppelin-server

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/1add74b4/zeppelin-server/src/main/java/org/apache/zeppelin/rest/NotebookRestApi.java -- diff --git a/zeppelin-server/src/main/java/org/apache/zeppelin/rest/NotebookRestApi.java

[1/5] zeppelin git commit: ZEPPELIN-3140. Fixed Checkstyle issues in zeppelin-server

Repository: zeppelin Updated Branches: refs/heads/master fe07e5a49 -> 1add74b4b http://git-wip-us.apache.org/repos/asf/zeppelin/blob/1add74b4/zeppelin-server/src/test/java/org/apache/zeppelin/rest/ZeppelinRestApiTest.java -- di

[2/5] zeppelin git commit: ZEPPELIN-3140. Fixed Checkstyle issues in zeppelin-server

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/1add74b4/zeppelin-server/src/test/java/org/apache/zeppelin/rest/AbstractTestRestApi.java -- diff --git a/zeppelin-server/src/test/java/org/apache/zeppelin/rest/AbstractTestRestA