These look like errors specific to your application. The items written to stderr appear to just be informative and not actual errors. Regarding the NPEs, I would start by finding out what is going on these lines that is causing them:
at com.bt.bttr.common.controller.ViewRoleController.referenceData(ViewRoleController.java:140) [classes:]
at com.bt.bttr.common.LoadProperties.loadProps(LoadProperties.java:31) [classes:]