Custom component: porting from lc 8.0 to lc 8.2

hello
i developed a java pojo custom component for lc 8.0, essentially it connected to a db and returned a complex object. Now the environment has been upgraded to lc 8.2 . I've loaded my processes (which include my custom component) on the new environment. When i start the process , my component reaches the finally block where i've logged the db connections closing. Immediatly after the system crushes with the following error(i haven't added the whole stack trace because its huge): 
2009-04-10 13:11:21,422 WARN  [com.arjuna.ats.jta.logging.loggerI18N] [com.arjuna.ats.internal.jta.transaction.arjunacore.lastResource.disallow] [com.arjuna.ats.internal.jta.transaction.arjunacore.lastResource.disallow] Adding multiple last resources is disallowed. Current resource is org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource@2ac6fb1
2009-04-10 13:11:21,431 ERROR [org.jboss.ejb.plugins.LogInterceptor] TransactionRolledbackLocalException in method: public abstract com.adobe.pof.GenericObject com.adobe.pof.omapi.POFObjectManagerLocal.writeObject(com.adobe.pof.GenericObject,com.ado be.idp.Context) throws com.adobe.pof.POFException, causedBy:
org.jboss.util.NestedSQLException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: 643401bb:6b45:49df1884:29cb status: ActionStatus.ABORT_ONLY >); - nested throwable: (org.jboss.resource.JBossResourceException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: 643401bb:6b45:49df1884:29cb status: ActionStatus.ABORT_ONLY >))
    at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94 )
    at com.adobe.pof.ConnectionWrapper.getConnection(ConnectionWrapper.java:45)
    at com.adobe.pof.ConnectionWrapper.prepareStatement(ConnectionWrapper.java:179)
    at com.adobe.pof.adapter.JDBCAdapter.prepareStatement(JDBCAdapter.java:5299)
After that jboss get stucked, printing exceptions every 2 minutes, and i need to stop and restart it. I don't see anything wrong with my code: i get the datasource object, i get a coonettin from it, make my queries/updates and finally i close the connection.
googling i've found this might be due to datasource item being local-tx-datasource instead of xa-datasource, but all datasources are of this kind.
Any hint about this problem will be greatly appreciated
thank you in advance
Stefano

hi Steve
thank you for your answer. Unluckly i'm not using mysql but oracle 9i (or 10i i don't know since i'm just a poor programmer). Anyway i did a test : i've bypassed the datasource file , hardcoding the connection parameters in my custom component and it has got executed without problem, then process has crushed again on a query done by some adobe component. there are many adobe sql component instances to read/write from the same schema my compnent uses, so i suppose the problem is inside datasource configuration. There's a datasource sample for oracle too?
I cannot give much details, since the new system has been recently installed and i don't know all info (i think jboss is 4.2 but i'm not sure)
thanks again
regards
Stfano

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    <facelet-taglib
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-facelettaglibrary_2_0.xsd"
    version="2.0">
    <namespace>http://custom/jsf/html</namespace>
    <tag>
    <tag-name>inputFile</tag-name>
    <component>
    <component-type>HtmlInputFile</component-type>
    </component>
    </tag>
    </facelet-taglib>
    when opening page:
    Expression Error: Named Object: HtmlInputFile not found.
    HtmlInputFile in jar file that laid in project's classpath.
    Please give a hint.

    Hi!
    I found out, that editing classpath of the custom component through the Component Wizard does not take effect immediatelly. You have to reinstall your component after such changes.
    Let me know if it works.
    Jakub
    Edited by: j.ciszek on 2008-11-18 10:03
    Edited by: j.ciszek on 2008-11-18 10:03

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