Axis and OSGi

Mon, 09 Oct 2006 07:13:11 -0700
And this is a shot in the dark but I will try it anyway - when executing the Axis inside the Knopflerfish container and I try to access a registered service I get exceptions that don't really point to a clear problem. I know this may not be too much to go by but what would cause the faults below ? Why would the server respond with NullPointerException ? This is a simple service with a simple method. So I am throwing it out there and if anyone has seen this before it would be of great help to send some feedback. Thanks and 
regards.


    [java] java.lang.NullPointerException
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:180) 
    [java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:710)
    [java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:178)
    [java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:84)
[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) 
    [java] at org.apache.tools.ant.Task.perform(Task.java:364)
    [java] at org.apache.tools.ant.Target.execute(Target.java:341)
    [java] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[java] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) 
    [java] at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
[java] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40) [java] at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32) [java] at org.apache.tools.ant.Project.executeTargets(Project.java:1068) [java] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423) [java] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137) 
    [java] Caused by: java.lang.NullPointerException
[java] at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:260) [java] at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:169) [java] at org.apache.axis.encoding.DeserializationContextImpl.endElement(DeserializationContextImpl.java:1015) [java] at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) [java] at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) [java] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) [java] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) [java] at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source) [java] at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source) 
    [java] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
[java] at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) 
    [java] at javax.xml.parsers.SAXParser.parse(Unknown Source)
[java] at org.apache.axis.encoding.DeserializationContextImpl.parse(DeserializationContextImpl.java:242) 
    [java] at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:538)
    [java] at org.apache.axis.Message.getSOAPEnvelope(Message.java:376)
    [java] at org.apache.axis.client.Call.invokeEngine(Call.java:2583)
    [java] at org.apache.axis.client.Call.invoke(Call.java:2553)
    [java] at org.apache.axis.client.Call.invoke(Call.java:2248)
    [java] at org.apache.axis.client.Call.invoke(Call.java:2171)
    [java] at org.apache.axis.client.Call.invoke(Call.java:1691)
[java] at org.knopflerfish.client.RemoteFWSoapBindingStub.getBundles(Unknown Source) 
    [java] at Test.main(Unknown Source)
    [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [java] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    [java] at java.lang.reflect.Method.invoke(Unknown Source)
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:202) [java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:134) 
    [java] ... 14 more
    [java] --- Nested Exception ---
    [java] AxisFault
[java] faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException 
    [java] faultSubcode:
    [java] faultString: java.lang.NullPointerException
    [java] faultActor:
    [java] faultNode:
    [java] faultDetail:
    [java] {http://xml.apache.org/axis/}stackTrace: AxisFault
[java] faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException 
    [java] faultSubcode:
    [java] faultString: java.lang.NullPointerException
    [java] faultActor:
    [java] faultNode:
    [java] faultDetail:


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