I have the problem after call method delete of POJO class on GateIn-3.0.0-GA. It display exception below:
I didn't met error when I use GateIn-3.0.0-Beta05, it run smoothly

18:14:56,562 ERROR [Exceptions] handled and logged exception
java.lang.IllegalStateException: Could not commit transaction
        at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:625)
        at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:604)
        at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsAfterPhase(SeamPhaseListener.java:345)
        at org.jboss.seam.jsf.SeamPhaseListenerWrapper.afterPortletPhase(SeamPhaseListenerWrapper.java:123)
        at org.jboss.seam.jsf.SeamPhaseListenerWrapper.afterPhase(SeamPhaseListenerWrapper.java:84)

my Pojo class

@Name("fileUploadBean")
public class FileUploadBean {
     
     ...
     
    public void delete() {
        Utils.info(getClass(), "START delete()");
        this.wire();
        Utils.info(getClass(), "BEGIN delete: "+FacesUtil.getRequestParameter("path"));
        path = FacesUtil.getRequestParameter("path");
        if (path != null && path.length() > 0) {
            this.jcrBrowser = new JCRBrowser();
            jcrBrowser.connectRepository(REPOSITORY_NAME);
            Utils.info(getClass(), "DOING delete: ");
            if(jcrBrowser.deleteNode(path)){//If delete success, get documents in folder
                Utils.info(getClass(), "delete()");
                if (orderFormId != null && orderFormId.length() > 0) {
                    Node nodeFolder = jcrBrowser.createOrderFormNode(orderFormId);
                    documents = jcrBrowser.intFolder(nodeFolder);
                }
            }
        }
        Utils.info(getClass(), "END delete()");
    }
     
     ...

}

and this link below is full my code and log error
POJO com.orderform.session.FileUploadBean
log file
Could someone help me to solved this problem?
Thanks