Version 7

    While deploying some services which make use of a datasource (e.g. EJBTimerService) the following ERROR is thrown in the log file, why?




    2007-08-29 10:41:29,857 ERROR [org.jboss.ejb.txtimer.GeneralPurposeDatabasePersistencePlugin] 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(
         at org.jboss.ejb.txtimer.DatabasePersistencePolicy.startService(




    This exception occurs, when your have an incorrect




    When you configure a datasource, please use the example templates given for your database server at : $JBOSS_HOME/docs/examples/jca


    You can find more information on datasource configuration at :