(It is very **important** that you created an Apache Knox JIRA for this change and that the PR title/commit message includes the Apache Knox JIRA ID!) ## What changes were proposed in this pull request? (Please fill in changes proposed in this fix) ## How was this patch tested? (Please explain how this patch was tested. For instance: running automated unit/integration tests, manual tests. Please write down your test steps as detailed as possible) (If this patch involves UI changes, please attach a screen-shot; otherwise, remove this) Please review [Knox Contributing Process](https://cwiki.apache.org/confluence/display/KNOX/Contribution+Process#ContributionProcess-GithubWorkflow) before opening a pull request.