[jboss-user] [JBoss Seam] - error when redeploying seam application

hello every one i am developping an application that simply connects to MYSQL and register user profiles in a table.i use 'jboss-4.0.4.GA' app server and seam framework with JSF components. when my .ear file doesent exist in 'deploy' subdirectory in jboss root folder ican deploy my app successfuly.but when i change some configuration files and try to redeply, the follwing error is reportedto me: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.; - nested throwable: (javax.resource.ResourceException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.) here is my *-ds.xml file setting: <local-tx-datasource> <jndi-name>bookingDatasource</jndi-name> <connection-url> jdbc:mysql://localhost:3306/booking?autoReconnect=true&amp;useUnicode=true&amp;characterEncoding=UTF8 </connection-url> <driver-class>com.mysql.jdbc.Driver</driver-class> <user-name>root</user-name> myroot </local-tx-datasource> so what happend fo my connection to database? & what should i do to get successed? thanks for any feedback. mahdi View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976231#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...