Hi I am using hibernate 3 with jboss 4.0.3 . In the start of application I am able to get connection to database. When I tried to execute again database operations again in a while , I am getting hibernate not bound exception with message as below, 14:55:31,439 INFO [Hibernate] SessionFactory successfully built and bound into JNDI [java:/hibernate/SessionFactory] 14:55:52,099 INFO [STDOUT] Inside doGet 14:55:52,099 INFO [STDOUT] POSTED ORDERS ARE IN GETW0111|POSOrder|Customer1|CustomerName|OrderDate|EMPTY 14:55:52,099 INFO [STDOUT] orderNumber W01115 14:55:52,099 INFO [STDOUT] posPOSOrder 14:55:52,099 INFO [STDOUT] order number and pos are not null 14:55:52,099 INFO [STDOUT] prev key nullcurr Key W0111 14:55:52,099 INFO [STDOUT] filled orders0 14:55:52,099 INFO [STDOUT] Constructing success and fail email messages 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: Begin 14:55:52,099 INFO [STDOUT] Number of success orders received 1 14:55:52,099 INFO [STDOUT] Key received inside construct SuccessEmail is W0111|POSOrder|Customer1|CustomerName|OrderDate|E TY 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: splitSuccessOrderKey : Begin 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: splitSuccessOrderKey : End W0111 Customer1 CustomerName Ord Date POSOrder 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: End 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: constructRejectedOrderEmail : Begin 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: constructRejectedOrderEmail : End 14:55:52,099 INFO [STDOUT] filled success orders6 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: updateOrders : Begin 14:55:52,099 INFO [STDOUT] order received inside updateOrders of OrderUpdateServlet is W0111 14:55:52,099 INFO [STDOUT] order received inside updateOrders of OrderUpdateServlet is POSOrder 14:55:52,099 INFO [STDOUT] order received inside updateOrders of OrderUpdateServlet is Customer1 14:55:52,099 INFO [STDOUT] order received inside updateOrders of OrderUpdateServlet is CustomerName 14:55:52,099 INFO [STDOUT] order received inside updateOrders of OrderUpdateServlet is OrderDate 14:55:52,099 INFO [STDOUT] order received inside updateOrders of OrderUpdateServlet is EMPTY 14:55:52,099 INFO [STDOUT] order being passed to retrieve batch idW0111 14:55:52,099 INFO [STDOUT] OrderUpdateServlet :: getBatchId : Begin 14:55:52,099 INFO [BaseDAO] BaseDAO :: findByProperty1 : Begin 14:55:52,099 INFO [BaseDAO] query passed select batchId from com.xpedx.ecommerce.order.model.OrderDTO order where order.or rStatus = 1 and order.orderId = :PARAMand the property passed is W0111 14:55:52,099 INFO [BaseDAO] Session is null ? true 14:55:52,099 INFO [BaseDAO] Session is null 14:55:52,109 WARN [SessionFactoryObjectFactory] Not found: 2c98b24214a8e4a70114a8e4a8ef0000 14:55:52,109 ERROR [BaseDAO] Session factory itself is null. Establish session factory first 14:55:52,109 INFO [STDOUT] 1W0111 14:55:52,109 ERROR [[OrderUpdateServlet]] Servlet.service() for servlet OrderUpdateServlet threw exception java.lang.NullPointerException at com.xpedx.ecommerce.BaseDAO.findByProperty1 Is this something related to cache / jboss settings/ hibernate? Have any one else experienced this? Sun View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078748#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...