Null pointer for axis2/tomcat example where the service interface/operation
takes no parameters
-----------------------------------------------------------------------------------------------
Key: TUSCANY-372
URL: http://issues.apache.org/jira/browse/TUSCANY-372
Project: Tuscany
Type: Bug
Components: Java SCA Axis Binding
Versions: Java-M1
Environment: Fedora Core 5
Reporter: Simon Laws
Priority: Minor
This is based on a check out from last week so I will give it a go on the
latest release but lest I forget the details. I have an example (attached)
which simply calls a remote component via axis2/web services. The implemented
operation takes no parameters and causes a null pointers exception down in the
Axis code on the server side where the request message is being unpacked [1].
I copied the example and changed the operation signature to include a single
string parameter (also included) and all was well. Nothing else, as far as I
can tell, changed between the two versions of the sample.
[1]
[EMAIL PROTECTED] helloworld6client]$ ./run.sh
Exception in thread "main" org.osoa.sca.ServiceRuntimeException:
org.apache.axis2.AxisFault: null; nested exception is:
java.lang.NullPointerException
at
org.apache.tuscany.binding.axis2.externalservice.Axis2ServiceInvoker.invoke(Axis2ServiceInvoker.java:56)
at
org.apache.tuscany.core.extension.ExternalServiceTargetInvoker.doInvoke(ExternalServiceTargetInvoker.java:84)
at
org.apache.tuscany.core.extension.ExternalServiceTargetInvoker.invokeTarget(ExternalServiceTargetInvoker.java:79)
at
org.apache.tuscany.core.extension.ExternalServiceTargetInvoker.invoke(ExternalServiceTargetInvoker.java:93)
at
org.apache.tuscany.core.wire.impl.InvokerInterceptor.invoke(InvokerInterceptor.java:39)
at
org.apache.tuscany.core.wire.jdk.JDKInvocationHandler.invoke(JDKInvocationHandler.java:112)
at $Proxy13.getResponse(Unknown Source)
at org.sample.helloworld.HelloWorldClient.main(HelloWorldClient.java:28)
Caused by: org.apache.axis2.AxisFault: null; nested exception is:
java.lang.NullPointerException
at
org.apache.axis2.description.OutInAxisOperationClient.execute(OutInAxisOperation.java:287)
at
org.apache.tuscany.binding.axis2.externalservice.Axis2OperationInvoker.invokeOperation(Axis2OperationInvoker.java:78)
at
org.apache.tuscany.binding.axis2.externalservice.Axis2ServiceInvoker.invoke(Axis2ServiceInvoker.java:53)
... 7 more
Caused by: java.lang.Exception: org.apache.axis2.AxisFault: null; nested
exception is:
java.lang.NullPointerException
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:318)
at
org.apache.tuscany.binding.axis2.entrypoint.WebServiceEntryPointInOutSyncMessageReceiver.invokeBusinessLogic(WebServiceEntryPointInOutSyncMessageReceiver.java:83)
at
org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.receive(AbstractInOutSyncMessageReceiver.java:37)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:454)
at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:284)
at
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:136)
at
org.apache.tuscany.binding.axis2.entrypoint.WebServiceEntryPointServlet.doPost(WebServiceEntryPointServlet.java:81)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
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.tuscany.tomcat.TuscanyValve.invoke(TuscanyValve.java:87)
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(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:797)
Caused by: java.lang.NullPointerException
at
org.apache.tuscany.binding.axis2.databinding.AxiomHelper.toDataObject(AxiomHelper.java:164)
at
org.apache.tuscany.binding.axis2.databinding.AxiomHelper.toObjects(AxiomHelper.java:68)
at
org.apache.tuscany.binding.axis2.databinding.SDODataBinding.fromOMElement(SDODataBinding.java:42)
at
org.apache.tuscany.binding.axis2.entrypoint.WebServiceEntryPointInOutSyncMessageReceiver.invokeBusinessLogic(WebServiceEntryPointInOutSyncMessageReceiver.java:50)
... 22 more
at org.apache.axis2.AxisFault.<init>(AxisFault.java:159)
... 10 more
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