*JBoss Messaging Null Persistence Service*
*Purpose:* To disable the Database Persistence Policy and introducing Null Persistence Service.
*Step 1:* we have to delete the existing \server\default\deploy\messaging\hsqldb-persistence-service.xml.
*Step 2:* delete the following *messaging* security policy from the \server\default\deploy\messaging\messaging-jboss-beans.xml file
