jax-ws: wsdl11 generation fails if the @WebMethod annotation does not have 
member-values
----------------------------------------------------------------------------------------

                 Key: WSAS-633
                 URL: http://wso2.org/jira/browse/WSAS-633
             Project: WSO2 WSAS
          Issue Type: Bug
    Affects Versions: Nightly
         Environment: WSAS-2.2-qabuild1, jdk15, winxp
            Reporter: Charitha Kankanamge
         Assigned To: Lahiru Sandakith
            Priority: Critical


The following exception thrown when trying to get the ?wsdl11 of a jaxws based 
service if the @WebMethod annotation does not have member-values.

org.apache.axis2.AxisFault
        at org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
        at 
org.apache.axis2.description.AxisService.getWSDL(AxisService.java:1208)
        at 
org.apache.axis2.description.AxisService.printWSDL(AxisService.java:1092)
        at 
org.wso2.wsas.transport.util.Wsdl11Processor$1.printWSDL(Wsdl11Processor.java:43)
        at 
org.wso2.wsas.transport.util.AbstractWsdlProcessor.printWSDL(AbstractWsdlProcessor.java:5
4)
        at 
org.wso2.wsas.transport.util.Wsdl11Processor.process(Wsdl11Processor.java:54)
        at org.wso2.wsas.transport.WSASServlet.doGet(WSASServlet.java:129)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:252)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

        at 
org.wso2.adminui.AdminUIServletFilter.doFilter(AdminUIServletFilter.java:142)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:202)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Htt
p11BaseProtocol.java:667)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.ja
va:80)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)
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:173)

        at 
org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:4
39)
        at 
org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:1
93)
        at 
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:804)
        at 
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:792)
        at 
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:808)
        at 
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:792)
        at 
org.apache.axiom.om.impl.llom.OMNodeImpl.serialize(OMNodeImpl.java:361)
        at 
org.apache.axiom.om.impl.llom.OMNodeImpl.serialize(OMNodeImpl.java:401)
        at 
org.apache.axis2.util.XMLPrettyPrinter.prettify(XMLPrettyPrinter.java:135)
        at 
org.apache.axis2.description.AxisService.getWSDL(AxisService.java:1204)
        ... 24 more

Steps to reproduce:
===============
1. Deploy the attached service 
2. Go to WSAS management console and select wsdl1.1 link

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