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From "Andreas Veithen (JIRA)" <j...@apache.org>
Subject [jira] Created: (SYNAPSE-366) Retrieving the WSDL for a proxy service without publishWSDL causes NullPointerException
Date Wed, 18 Jun 2008 17:20:45 GMT
Retrieving the WSDL for a proxy service without publishWSDL causes NullPointerException 
----------------------------------------------------------------------------------------

                 Key: SYNAPSE-366
                 URL: https://issues.apache.org/jira/browse/SYNAPSE-366
             Project: Synapse
          Issue Type: Bug
    Affects Versions: 1.2
            Reporter: Andreas Veithen
            Priority: Minor
             Fix For: 1.3


Example proxy service definition:

    <proxy name="confirm">
        <target>
            <inSequence>
                <drop/>
            </inSequence>
        </target>
    </proxy>

When trying to retrieve the WSDL using http://localhost:8080/soap/confirm?wsdl, the following
exception is triggered:

org.apache.axis2.AxisFault
    at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
    at org.apache.axis2.description.AxisService.getWSDL(AxisService.java:1471)
    at org.apache.axis2.description.AxisService.printWSDL(AxisService.java:1334)
    at org.apache.synapse.transport.nhttp.ServerWorker.processGet(ServerWorker.java:341)
    at org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:192)
    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:613)
Caused by: java.lang.NullPointerException
    at com.ctc.wstx.sw.BaseNsStreamWriter.doWriteAttr(BaseNsStreamWriter.java:468)
    at com.ctc.wstx.sw.BaseNsStreamWriter.writeAttribute(BaseNsStreamWriter.java:230)
    at org.apache.axiom.om.impl.MTOMXMLStreamWriter.writeAttribute(MTOMXMLStreamWriter.java:184)
    at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:473)
    at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:227)
    at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:915)
    at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:903)
    at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:919)
    at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:903)
    at org.apache.axiom.om.impl.llom.OMNodeImpl.serialize(OMNodeImpl.java:375)
    at org.apache.axiom.om.impl.llom.OMNodeImpl.serialize(OMNodeImpl.java:415)
    at org.apache.axis2.util.XMLPrettyPrinter.prettify(XMLPrettyPrinter.java:136)
    at org.apache.axis2.description.AxisService.getWSDL(AxisService.java:1467)
    ... 6 more

This then causes the following error:

2008-06-18 19:06:54,513 [192.168.1.5-orcus.veithen.net] [HttpServerWorker-5] ERROR ServerHandler
Unexpected HTTP protocol error : Transfer-encoding header already present
org.apache.http.ProtocolException: Transfer-encoding header already present
    at org.apache.http.protocol.ResponseContent.process(ResponseContent.java:67)
    at org.apache.http.protocol.BasicHttpProcessor.process(BasicHttpProcessor.java:304)
    at org.apache.synapse.transport.nhttp.ServerHandler.commitResponse(ServerHandler.java:212)
    at org.apache.synapse.transport.nhttp.HttpCoreNIOSender.sendAsyncResponse(HttpCoreNIOSender.java:394)
    at org.apache.synapse.transport.nhttp.HttpCoreNIOSender.invoke(HttpCoreNIOSender.java:249)
    at org.apache.axis2.engine.AxisEngine.sendFault(AxisEngine.java:530)
    at org.apache.synapse.transport.nhttp.ServerWorker.handleException(ServerWorker.java:489)
    at org.apache.synapse.transport.nhttp.ServerWorker.processGet(ServerWorker.java:344)
    at org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:192)
    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:613)



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