Null Pointer Exception in Service STUB class at
_operationClient.execute(true); line for AXIS2 1.1.1
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Key: AXIS2-1964
URL: https://issues.apache.org/jira/browse/AXIS2-1964
Project: Apache Axis 2.0 (Axis2)
Issue Type: Bug
Components: codegen
Affects Versions: 1.1.1
Environment: WINDOWS, JAVA1.4, RAD IDE
Reporter: Vivek Gawande
The recently released version 1.1.1 gives following NPE. It works fine with
AXIS2 (1 and 1.1) versions though. The WorkflowServiceAdapterServiceStub is my
service stub class.
java.lang.NullPointerException
at
com.ctc.wstx.sw.BaseNsStreamWriter.doWriteDefaultNs(BaseNsStreamWriter.java:528)
at
com.ctc.wstx.sw.SimpleNsStreamWriter.writeDefaultNamespace(SimpleNsStreamWriter.java:111)
at
com.ctc.wstx.sw.SimpleNsStreamWriter.writeNamespace(SimpleNsStreamWriter.java:119)
at
org.apache.axiom.om.impl.MTOMXMLStreamWriter.writeNamespace(MTOMXMLStreamWriter.java:146)
at
org.apache.axiom.om.impl.serialize.StreamingOMSerializer.serializeElement(StreamingOMSerializer.java:243)
at
org.apache.axiom.om.impl.serialize.StreamingOMSerializer.serializeNode(StreamingOMSerializer.java:76)
at
org.apache.axiom.om.impl.serialize.StreamingOMSerializer.serialize(StreamingOMSerializer.java:59)
at
org.apache.axiom.om.impl.util.OMSerializerUtil.serializeByPullStream(OMSerializerUtil.java:473)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:823)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerializeAndConsume(OMElementImpl.java:848)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:819)
at
org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(SOAPEnvelopeImpl.java:180)
at
org.apache.axiom.om.impl.llom.OMElementImpl.internalSerializeAndConsume(OMElementImpl.java:848)
at
org.apache.axiom.om.impl.llom.OMNodeImpl.serializeAndConsume(OMNodeImpl.java:419)
at
org.apache.axis2.transport.http.SOAPOverHTTPSender$AxisSOAPRequestEntity.handleOMOutput(SOAPOverHTTPSender.java:190)
at
org.apache.axis2.transport.http.SOAPOverHTTPSender$AxisSOAPRequestEntity.writeRequest(SOAPOverHTTPSender.java:232)
at
org.apache.commons.httpclient.methods.EntityEnclosingMethod.writeRequestBody(EntityEnclosingMethod.java:495)
at
org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:1973)
at
org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:993)
at
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:397)
at
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
at
org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:541)
at
org.apache.axis2.transport.http.SOAPOverHTTPSender.send(SOAPOverHTTPSender.java:119)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:335)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:204)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:674)
at
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:237)
at
org.apache.axis2.description.OutInAxisOperationClient.execute(OutInAxisOperation.java:202)
at
com.gnw.eprocess.svc.wf.WorkflowServiceAdapterServiceStub.createWorkItem(WorkflowServiceAdapterServiceStub.java:240)
at
com.gnw.eprocess.svc.wf.test.WorkflowServiceAdapterServiceStubTest.testCreateWorkItem(WorkflowServiceAdapterServiceStubTest.java:85)
I compared the files generated for 1.1.1 with 1.1 and there is mismatch on the
line where it sets Action attribute
1.1 Generated Code: _operationClient.getOptions().setAction("");
1.1.1 Generated Code:
_operationClient.getOptions().setAction("http://wf.svc.eprocess.gnw.com/WorkflowServiceAdapter/createWorkItemRequest";);
We were actually looking for the fix of Bug 1856 in 1.1.1 as our IBM
Webservice WSDL contains Abstract element, which is causing problems writing
handlers on our service side on the SOAP Request after deserialization. But now
the client stopped creating SOAP Request because of above NPE. I am not sure
whether the Bug 1856 and above problem is related.
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