ArrayStoreException in get*Array() method in custom Ant task

[Tellis B. Ellis, IV]

Fellow XMLBeans users,

 

I have an xmlbean and some code that uses the xmlbean. The code works as expected when launched from the java command-line

or launched via Ant's 'java' task. I wrote a simple Ant custom task to run the code. When the custom task is executed an ArrayStoreException is thrown in the bean's get*Array() method. I'm using XMLBeans 2.1.0 and Ant 1.6.4. Below is a snippet from the stacktrace:

 

     java.lang.ArrayStoreException

        at com.commerce360.internal.cm.starteam.query.xml.impl.QueryDefinitionSetXmlBeanImpl.getQueryArray(QueryDefinitionSetXmlBeanImpl.java:59)

 

The XSD fragment for the bean looks like this:

<xs:complexType name="queryDefinitionSet">
       
        <xs:sequence>
            <xs:element ref="query" maxOccurs="unbounded" minOccurs="0"/>
        </xs:sequence>
       
    </xs:complexType>

 

   <xs:complexType name="queryDefinition" abstract="true">
       
        <xs:sequence>  
           
            <xs:element name="id" type="xs:ID" maxOccurs="1"/>
 
        </xs:sequence>
       
    </xs:complexType>
   
    <xs:complexType name="itemQueryDefinition" abstract="true">
        <xs:complexContent>
            <xs:extension base="queryDefinition">         
                <xs:sequence>
 
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
   
    <xs:complexType name="changeRequestQueryDefinition">
        <xs:complexContent>
            <xs:extension base="itemQueryDefinition">         
                <xs:sequence>
 
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
   
    <xs:complexType name="fileQueryDefinition">
        <xs:complexContent>
            <xs:extension base="itemQueryDefinition">         
                <xs:sequence>
                   
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
   
    <xs:element name="query" type="queryDefinition"/>

The code generated for the xmlbean's getQueryArray() method looks like this:

 

public class QueryDefinitionSetXmlBeanImpl extends org.apache.xmlbeans.impl.values.XmlComplexContentImpl implements com.commerce360.internal.cm.starteam.query.xml.QueryDefinitionSetXmlBean
{
   
    public QueryDefinitionSetXmlBeanImpl(org.apache.xmlbeans.SchemaType sType)
    {
        super(sType);
    }
   
    private static final javax.xml.namespace.QName QUERY$0 =
        new javax.xml.namespace.QName("http://www.360commerce.com/internal/starteam/query/xml", "query");
    private static final org.apache.xmlbeans.QNameSet QUERY$1 = org.apache.xmlbeans.QNameSet.forArray(

        new javax.xml.namespace.QName[] {
        new javax.xml.namespace.QName("http://www.360commerce.com/internal/starteam/query/xml", "item-query"),
        new javax.xml.namespace.QName("http://www.360commerce.com/internal/starteam/query/xml", "file-query"),
        new javax.xml.namespace.QName("http://www.360commerce.com/internal/starteam/query/xml", "change-request-query"),
        new javax.xml.namespace.QName("http://www.360commerce.com/internal/starteam/query/xml", "query"),
    });
   
   
    /**
     * Gets array of all "query" elements
     */
    public com.commerce360.internal.cm.starteam.query.xml.QueryDefinitionXmlBean[] getQueryArray()
    {
        synchronized (monitor())
        {
            check_orphaned();
            java.util.List targetList = new java.util.ArrayList();
            get_store().find_all_element_users(QUERY$1, targetList);
            com.commerce360.internal.cm.starteam.query.xml.QueryDefinitionXmlBean[] result = new 

                                          com.commerce360.internal.cm.starteam.query.xml.QueryDefinitionXmlBean[targetList.size()];
            targetList.toArray(result);
            return result;
        }
    }
   

     .....

     .....

     ......

 

}

 

 

 

The exception occurs at the 'targetList.toArray(result)' line. What's happening is that when the code is run as a custom ant task,

the class of the elements in the 'targetList' ArrayList is 'org.apache.xmlbeans.impl.values.XmlAnyTypeImpl' whereas when the same code

is successfully run as a command-line java app, the class is 'com.commerce360.internal.cm.starteam.query.xml.impl.ChangeRequestQueryDefinitionXmlBeanImpl'. I am using the same classpath

and input XML in both cases.

 

I did some googling and found another person who experienced the same exception but over RMI:

 

http://mail-archives.apache.org/mod_mbox/xmlbeans-user/200310.mbox/[EMAIL PROTECTED]

 

Does anyone have insight as to why the XMLBeans unmarshalling code would type my objects as XmlAnyTypeImpl when

run as a custom Ant task? This smells like one of those esoteric classloader issues and I suspect it requires a deeper knowlegde of XMLBeans

internals than I currently have to debug it.

 

Any help or insights would be appreciated.

 

Thanks,

 

-- Tellis