The PolicyLogger.info(Object arg0) method takes a generic Java object as a parameter and is supposed to cast the Object to a String and pass it to the PolicyLogger.info(String arg0) method. However, the Object is never cast, therefore the method calls itself recursively until it eventually causes a stack overflow error.

Fix was to simply call debugLogger.info(MessageCodes, String) directly from within PolicyLogger.info(Object arg0)  and remove the PolicyLogger.info(String arg0) method.