[jboss-user] [JBoss Messaging] - Cannot create timer table

During start up of JBoss application server with JBoss messaging, I do see the following exception. I would like to understand what is this error and how to fix it. Please help. main 2007-04-30 17:23:29,591 ERROR [org.jboss.ejb.txtimer.GeneralPurposeDatabasePersistencePlugin.createTableIfNotExists:155] Cannot create timer table java.lang.IllegalStateException: Cannot obtain type mapping from: jboss.jdbc:datasource=DefaultDS,service=metadata at org.jboss.ejb.txtimer.GeneralPurposeDatabasePersistencePlugin.createTableIfNotExists(GeneralPurposeDatabasePersistencePlugin.java:117) at org.jboss.ejb.txtimer.DatabasePersistencePolicy.startService(DatabasePersistencePolicy.java:106) at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289) at org.jboss.system.ServiceMBeanSupport.start(ServiceMBeanSupport.java:196) ...................................... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4042074#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...