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From manish_goyal <manishkumar_go...@infosys.com>
Subject how can we access java object variable in xpath, ActiveMQ
Date Sat, 15 Nov 2008 07:48:22 GMT

Hi,

I am sending java object to ActiveMQ JMS queue after converting it into SOAP
message then SOAP message to textmessage. 
When i am trying to use xpath for checking variable value, i am getting
following error:-

[Fatal Error] :1:1: Content is not allowed in prolog.

WARN  - XPathPredicate                 - Could not evaluate xpath expression
javax.jbi.messaging.MessagingException: org.xml.sax.SAXParseException:
Content is not allowed in prolog.
        at
org.apache.servicemix.expression.JAXPXPathExpression.evaluate(JAXPXPathExpression.java:150)
        at
org.apache.servicemix.expression.JAXPBooleanXPathExpression.evaluate(
JAXPBooleanXPathExpression.java:46)
        at
org.apache.servicemix.eip.support.XPathPredicate.matches(XPathPredicate.java:48)
        at
org.apache.servicemix.eip.patterns.ContentBasedRouter.getDestination(ContentBasedRouter.java:78)
        at
org.apache.servicemix.eip.support.AbstractContentBasedRouter.processA
sync(AbstractContentBasedRouter.java:116)
        at
org.apache.servicemix.eip.EIPEndpoint.process(EIPEndpoint.java:161)
        at
org.apache.servicemix.common.AsyncBaseLifeCycle.doProcess(AsyncBaseLifeCycle.java:540)
        at
org.apache.servicemix.common.AsyncBaseLifeCycle.processExchange(Async
BaseLifeCycle.java:492)
        at
org.apache.servicemix.common.BaseLifeCycle.onMessageExchange(BaseLifeCycle.java:46)
        at
org.apache.servicemix.jbi.messaging.DeliveryChannelImpl.processInBoun
d(DeliveryChannelImpl.java:610)
        at
org.apache.servicemix.jbi.nmr.flow.AbstractFlow.doRouting(AbstractFlow.java:172)
        at
org.apache.servicemix.jbi.nmr.flow.seda.SedaFlow.doRouting(SedaFlow.java:167)
        at
org.apache.servicemix.jbi.nmr.flow.seda.SedaQueue$1.run(SedaQueue.java:134)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)
Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog.
        at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
      at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
       at
org.apache.servicemix.jbi.jaxp.SourceTransformer.toDOMSourceFromStrea
m(SourceTransformer.java:262)
        at
org.apache.servicemix.jbi.jaxp.SourceTransformer.toDOMSource(SourceTransformer.java:175)
        at
org.apache.servicemix.jbi.jaxp.SourceTransformer.toDOMNode(SourceTransformer.java:311)
        at
org.apache.servicemix.jbi.jaxp.SourceTransformer.toDOMNode(SourceTransformer.java:330)
        at
org.apache.servicemix.expression.JAXPXPathExpression.getXMLNode(JAXPXPathExpression.java:244)
        at
org.apache.servicemix.expression.JAXPXPathExpression.evaluate(JAXPXPathExpression.java:135)
        ... 15 more

what format I need to convert JAVA object?

Is this possible to use xpath over JAVA object?

Please give me your suggestion as soon as possible. I would appreciate your
suggestion. :)

Thanks.

Regards,
Manish


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