RANGER-2615:Unable to create Role

Signed-off-by: rmani <rmani@hortonworks.com>
diff --git a/security-admin/src/main/java/org/apache/ranger/db/XXGlobalStateDao.java b/security-admin/src/main/java/org/apache/ranger/db/XXGlobalStateDao.java
index 4f7e9d5..e91d356 100644
--- a/security-admin/src/main/java/org/apache/ranger/db/XXGlobalStateDao.java
+++ b/security-admin/src/main/java/org/apache/ranger/db/XXGlobalStateDao.java
@@ -74,6 +74,7 @@
             try {
                 XXGlobalState globalState = findByStateName(stateName);
                 if (globalState == null) {
+                    globalState = new XXGlobalState();
                     createGlobalStateForRoleVersion(globalState, stateName);
                 } else {
                     updateGlobalStateForRoleVersion(globalState, stateName);