NullPointerException in org.apache.axiom.om.impl.util.OMSerializerUtil
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Key: AXIS2-3369
URL: https://issues.apache.org/jira/browse/AXIS2-3369
Project: Axis 2.0 (Axis2)
Issue Type: Bug
Components: om
Affects Versions: 1.3
Environment: Cent OS 5, Apache 2.2.3, Tomcat 5.5.23, Axis2 1.3
CPU: AMD64
Reporter: Kengo Seki
I'm trying to build my web service from WSDL already I have using Axis2 1.3,
but the deployed web service doesn't work because of NullPointerException in
OMSerializerUtil.
I have tried:
1. Using wsdl2java, generating skeleton codes from the wsdl attached to this
post.
2. Build an aar file from skeletons and deploy it on Tomcat/Axis2 server.
3. Accessing deployed services. It causes server-side errors like this:
2007-11-27 17:24:34,608 [http-8080-Processor24] ERROR
org.apache.axis2.transport.http.AxisServlet -
java.lang.NullPointerException
at
org.apache.axiom.om.impl.util.OMSerializerUtil.generateSetPrefix(OMSerializerUtil.java:560)
at
org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:273)
at
org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:172)
at
org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(SOAPEnvelopeImpl.java:218)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerializeAndConsume(OMElementImpl.java:814)
at
org.apache.axiom.om.impl.llom.OMNodeImpl.serializeAndConsume(OMNodeImpl.java:421)
at
org.apache.axis2.transport.http.SOAPMessageFormatter.writeTo(SOAPMessageFormatter.java:68)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.sendUsingOutputStream(CommonsHTTPTransportSender.java:294)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:211)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
at
org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:45)
at
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145)
at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120)
at
javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so)
at
javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.core.StandardWrapperValve.invoke(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.core.StandardContextValve.invoke(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.core.StandardHostValve.invoke(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.valves.ErrorReportValve.invoke(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.core.StandardEngineValve.invoke(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.catalina.connector.CoyoteAdapter.service(catalina-5.5.23.jar.so8lr3s7.so)
at
org.apache.coyote.http11.Http11Processor.process(tomcat-http-5.5.23.jar.so)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(tomcat-http-5.5.23.jar.so)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(tomcat-util-5.5.23.jar.so)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(tomcat-util-5.5.23.jar.so)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(tomcat-util-5.5.23.jar.so)
at java.lang.Thread.run(libgcj.so.7rh)
Almost same trouble also occurs if using the latest snapshot (revision 595335).
It seems to be able to avoid by null check on the return of
writer.getNamespaceContext().
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