I am evaluating openJPA to use for our current project.  It works fine for our need with database.  But I am having problem with the XMLStoreManager.  I have two simple objects – Customer and User.  Customer can have multiple users.  I look at the object store in xml file.  It stored like this:


<?xml version="1.0" encoding="UTF-8"?>


    <object class="net.iss.mss.jpa.examples.remedy.Customer" oid="1" version="0">

        <field name="customerId">



        <field name="customerName">



        <field name="users">











Shoud the Users element store User object?  The XMLStoreManager failed to load data in because it doest not know how to create this object:                org.apache.openjpa.util.StringId:1


Please help…


I attached my orm.xml and persisentene.xml for your references.







Anh Ngo

Senior Application Programmer

IBM Internet Security Systems

248 226 9059