�Keith,
I am trying to do unmarshalling using castor.
I am using a general response mapping file.
The input xml for the mapping file contains more contents than the response mapping 
file.
I get a null pointer exception like this:
java.lang.NullPointerException
        at 
org.exolab.castor.xml.UnmarshalHandler.startElement(UnmarshalHandler.java:1635)
        at 
org.exolab.castor.xml.UnmarshalHandler.startElement(UnmarshalHandler.java:1292)
        at 
org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:446)
        at 
org.apache.xerces.impl.XMLNamespaceBinder.startElement(XMLNamespaceBinder.java:571)
        at 
org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:809)
        at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:752)
        at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1456)
        at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:333)
        at 
org.apache.xerces.parsers.StandardParserConfiguration.parse(StandardParserConfiguration.java:525)
        at 
org.apache.xerces.parsers.StandardParserConfiguration.parse(StandardParserConfiguration.java:581)
        at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147)
        at 
org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1158)
        at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:605)
        at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:513)
        

What should i do?
Do i have to have a mapping file for unmarshalling with the same contents like the 
input xml?

Sorry for disturbing you!!!

Thanks and regards,
Janarthanan.


Life is not a bed of roses!
----------------------------
With warmest regards,
T.K.Janarthanan.
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