GitHub user prabhjyotsingh opened a pull request: https://github.com/apache/zeppelin/pull/2481
[HOTFIX] fix JDBC regression caused after ZEPPELIN-2698 ### What is this PR for? This is WRT to https://github.com/apache/zeppelin/commit/e1f0a3205eb5aede0b2d80c9d3de59b3f47b699c#commitcomment-23016062 > This caused a regression: https://github.com/apache/zeppelin/blame/master/jdbc/src/main/java/org/apache/zeppelin/jdbc/JDBCInterpreter.java#L212 Leads to: java.lang.NoClassDefFoundError: org/apache/hadoop/security/UserGroupInformation$AuthenticationMethod at org.apache.zeppelin.jdbc.security.JDBCSecurityImpl.getAuthtype(JDBCSecurityImpl.java:64) at org.apache.zeppelin.jdbc.JDBCInterpreter.isKerboseEnabled(JDBCInterpreter.java:213) ### What type of PR is it? [Bug Fix | Hot Fix] ### How should this be tested? Check JDBC interpreter without any Kerberos setting ### Questions: * Does the licenses files need update? N/A * Is there breaking changes for older versions? N/A * Does this needs documentation? N/A You can merge this pull request into a Git repository by running: $ git pull https://github.com/prabhjyotsingh/zeppelin hotfix/jdbc_ZEPPELIN-2698 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/zeppelin/pull/2481.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 #2481 ---- commit abbf028b96ca737a1f9070f75281a42497cca448 Author: Prabhjyot Singh <prabhjyotsi...@gmail.com> Date: 2017-07-11T03:07:39Z add isEmpty check ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---