Tamino API using SAX

I downloaded the SAX example and it works fine.
I changed it just to query the patient schema in the Hospital database and I get the following error. I commented out the insert,update and delete calls. I changed the query string, database uri and collection. All the other code
remains unchanged.
Any ideas.
Thanks, Patrick.

patient
Access failed:Response could not be built
NestedException:Response could not be built for XML access.
NestedException:Interpreting the input stream for JDOM failed!
NestedException:Error in building: null
Nested Exception (com.softwareag.tamino.db.api.response.TResponseBuildException) stacktrace:

Nested Exception (com.softwareag.tamino.db.api.response.TStreamInterpretException) stacktrace:

Nested Exception (org.jdom.JDOMException) stacktrace:

org.jdom.JDOMException: Error in building: null
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:411)
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:428)
at com.softwareag.tamino.db.api.response.jdom.TJDOMInputStreamInterpreter.doInterpret(TJDOMInputStreamInterpreter.java:98)
at com.softwareag.tamino.db.api.response.TInputStreamInterpreter.interpret(TInputStreamInterpreter.java:55)
at com.softwareag.tamino.db.api.response.sax.TSAXInputStreamInterpreter.doInterpret(TSAXInputStreamInterpreter.java:107)
at com.softwareag.tamino.db.api.response.TInputStreamInterpreter.interpret(TInputStreamInterpreter.java:55)
at com.softwareag.tamino.db.api.response.TResponseBuilderImpl.doBuild(TResponseBuilderImpl.java:81)
at com.softwareag.tamino.db.api.response.TResponseBuilderImpl.buildForXML(TResponseBuilderImpl.java:60)
at com.softwareag.tamino.db.api.accessor.TXMLObjectAccessorImpl.query(TXMLObjectAccessorImpl.java:228)
at com.softwareag.tamino.db.api.examples.message.ProcessMessage.performQuery(ProcessMessage.java:117)
at com.softwareag.tamino.db.api.examples.message.ProcessMessage.show(ProcessMessage.java:166)
at com.softwareag.tamino.db.api.examples.message.ProcessMessage.main(ProcessMessage.java:182)
Root cause: java.lang.NullPointerException
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1048)
at com.softwareag.tamino.db.api.response.sax.TXMLReaderDecorator.parse(TXMLReaderDecorator.java:375)
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:395)
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:428)
at com.softwareag.tamino.db.api.response.jdom.TJDOMInputStreamInterpreter.doInterpret(TJDOMInputStreamInterpreter.java:98)
at com.softwareag.tamino.db.api.response.TInputStreamInterpreter.interpret(TInputStreamInterpreter.java:55)
at com.softwareag.tamino.db.api.response.sax.TSAXInputStreamInterpreter.doInterpret(TSAXInputStreamInterpreter.java:107)
at com.softwareag.tamino.db.api.response.TInputStreamInterpreter.interpret(TInputStreamInterpret