when I execute jbpm-installer-3.3.1GA, the wizard will run and I give the location of jboss and also in one of the screen i say that iam using mysql , then the wizard executes completely creating jbpm folder in jboss4.2.2./server/default/deploy/ when i open that newly created jbpm folder i am able to see a file called jbpm-mysql-ds.xml, it has three lines | <xa-datasource-property name="URL">${jdbc.mysql.url}</xa-datasource-property> | <user-name>${jdbc.mysql.username}</user-name> | <password>${jdbc.mysql.password}</password> | <datasources> | <local-tx-datasource> | <jndi-name>JbpmDS</jndi-name> | <connection-url>jdbc:mysql://localhost:3306/jbpm</connection-url> | <!-- The driver class --> | <driver-class>com.mysql.jdbc.Driver</driver-class> | <!-- The login and password --> | <user-name>root</user-name> | <password>welcome</password> | </local-tx-datasource> | </datasources> but it gives me an error | --- Incompletely deployed packages --- | org.jboss.deployment.DeploymentInfo@ee96070 { url=file:/C:/jboss-4.2.2.GA/server/default/deploy/mysql-ds.xml } | deployer: org.jboss.deployment.XSLSubDeployer@18f127c | status: Deployment FAILED reason: Trying to install an already registered mbean: jboss.jca:service=DataSourceBinding,name=JbpmDS | state: FAILED | watch: file:/C:/jboss-4.2.2.GA/server/default/deploy/mysql-ds.xml | altDD: null | lastDeployed: 1235063072861 | lastModified: 1235063072845 | mbeans: | | --- MBeans waiting for other MBeans --- | ObjectName: jboss.j2ee:service=EjbModule,module=jbpm-enterprise.jar | State: FAILED | Reason: org.jboss.deployment.DeploymentException: Error while fixing table name; - nested throwable: (org.jboss.util.NestedSQLException: Could not create connection; - nested throwable: (java.lang.NullPointerException); - nested throwable: (org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.lang.NullPointerException))) | | --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM --- | ObjectName: jboss.j2ee:service=EjbModule,module=jbpm-enterprise.jar | State: FAILED | Reason: org.jboss.deployment.DeploymentException: Error while fixing table name; - nested throwable: (org.jboss.util.NestedSQLException: Could not create connection; - nested throwable: (java.lang.NullPointerException); - nested throwable: (org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.lang.NullPointerException))) | | please help me to resolve this, iam breaking the head for the past 2 days View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211574#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...