Re: AW: [xfire-user] strange xfire (concurrency?) behaviour

[Sascha Sadat-Guscheh]

hi ..

it seems that it's an threading issue!!
i create a proxy for my service class like this

Service similarityService = new 
ObjectServiceFactory().create(SimilarityController.class);
similarityController = (SimilarityController) new 
XFireProxyFactory().create(similarityService, webserviceUrlString + 
"similarity");

then i do

for (int i = 0; i < 10; i++) {
   similarityController.callSomeMethod();
}

everything works fine!!!

but when i do
for (int i = 0; i < 10; i++) {
   Thread t = new Thread(new Runnable() {
      void run() {
       similarityController.callSomeMethod();
      }
   ));
  t.start();
}

i get all kinds of strange errors .. like for example:

org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. 
Nested exception is org.codehaus.xfire.fault.XFireFault: Can not output 
XML declaration, after other output has already been done.

my service will be invoked by some ajax action .. so there's "a lot of 
concurrency".
what would be the right way to it? get an serviceProxy for each thread?

thx and regards, sascha


Hi Sascha, 

As far as I remember, Xfire doesn't check for null on the server side for 
performance reasons, so if one of your methods return a NULL character (could 
be inside a text \u0000, the client will throw the exception but you wouldn't 
see anything on the server side.

Cheers, Mika

-----Ursprüngliche Nachricht-----
Von: Dan Diephouse [mailto:[EMAIL PROTECTED] 
Gesendet: Mittwoch, 29. März 2006 18:21
An: user@xfire.codehaus.org
Betreff: Re: [xfire-user] strange xfire (concurrency?) behaviour


Hi Sascha,
It looks like you're sending the NULL character over the wire, which is 
strictly forbidden in XML. It seems this is happening on your server 
side for the first exception. I think it is probably causing that second 
exception as well. I would bump up your server logging to DEBUG for the 
org.codehaus.xfire category and look for stack traces on the server side.

Not knowing your service, I don't really have any real idea what is 
sending the null character along, I guess you'll probably have to 
investigate yourself :-)

- Dan

Sascha Sadat-Guscheh wrote:

 

hi all..

we are using xfire 1.0 (in a jboss container) for our webservices.
most of the time it seems to work fine .. but then we get some really 
strange exceptions.
different exceptions for the same method call, which makes it much 
more weird. i collected all the error messages and attached them to 
this mail.
can anyone tell me please, if these exceptions are related and what i 
can do to get rid of them. i get this exceptions only at the client 
side (can't find any
errors in the server logs). i allready set org.codehaus.xfire to DEBUG 
in log4j, but on the serverside xfire is completely happy.

regards,
sascha

-----------------------------------------------------------------------
-

org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. 
Nested exception is org.codehaus.xfire.fault.XFireFault: Error parsing 
document.. Nested exception is com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal character (NULL, unicode 0) encountered: not valid in any context  at [row,col {unknown-source}]: [61,-33]
org.codehaus.xfire.fault.XFireFault: Error parsing document.. Nested exception 
is com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal character (NULL, 
unicode 0) encountered: not valid in any context
at [row,col {unknown-source}]: [61,-33]
        at org.codehaus.xfire.fault.XFireFault.createFault(XFireFault.java:89)
        at org.codehaus.xfire.client.Client.onReceive(Client.java:365)
        at 
org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:179)
        at 
org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:82)
        at 
org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
        at 
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:98)
        at org.codehaus.xfire.client.Client.invoke(Client.java:263)
        at 
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
        at org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
        at $Proxy11.getSimiliarityResults(Unknown Source)
        at 
at.systemone.wiki.webservice.SimilarityControllerTest.testSiteSimilarity(SimilarityControllerTest.java:33)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at 
com.intellij.rt.execution.junit2.JUnitStarter.main(JUnitStarter.java:32)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: org.codehaus.xfire.XFireRuntimeException: Error parsing document.. 
Nested exception is com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal 
character (NULL, unicode 0) encountered: not valid in any context
at [row,col {unknown-source}]: [61,-33]
        at 
org.codehaus.xfire.aegis.stax.ElementReader.checkHasMoreChildReaders(ElementReader.java:175)
        at 
org.codehaus.xfire.aegis.stax.ElementReader.getValue(ElementReader.java:82)
        at 
org.codehaus.xfire.aegis.type.basic.StringType.readObject(StringType.java:23)
        at 
org.codehaus.xfire.aegis.type.basic.BeanType.readObject(BeanType.java:111)
        at 
org.codehaus.xfire.aegis.type.collection.CollectionType.readObject(CollectionType.java:43)
        at 
org.codehaus.xfire.aegis.type.basic.BeanType.readObject(BeanType.java:111)
        at 
org.codehaus.xfire.aegis.AegisBindingProvider.readParameter(AegisBindingProvider.java:91)
        at 
org.codehaus.xfire.service.binding.AbstractBinding.read(AbstractBinding.java:175)
        at 
org.codehaus.xfire.service.binding.WrappedBinding.readMessage(WrappedBinding.java:50)
        at 
org.codehaus.xfire.soap.handler.SoapBodyHandler.invoke(SoapBodyHandler.java:42)
        at 
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:98)
        at org.codehaus.xfire.client.Client.onReceive(Client.java:352)
        ... 32 more
Caused by: com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal character 
(NULL, unicode 0) encountered: not valid in any context
at [row,col {unknown-source}]: [61,-33]
        at com.ctc.wstx.sr.StreamScanner.throwNullChar(StreamScanner.java:553)
        at 
com.ctc.wstx.sr.BasicStreamReader.readTextPrimary(BasicStreamReader.java:4280)
        at 
com.ctc.wstx.sr.BasicStreamReader.nextFromTree(BasicStreamReader.java:2683)
        at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1001)
        at 
org.codehaus.xfire.util.stax.DepthXMLStreamReader.next(DepthXMLStreamReader.java:251)
        at 
org.codehaus.xfire.util.stax.DepthXMLStreamReader.next(DepthXMLStreamReader.java:251)
        at 
org.codehaus.xfire.aegis.stax.ElementReader.checkHasMoreChildReaders(ElementReader.java:166)
        ... 43 more
        

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JavaException: org.codehaus.xfire.XFireRuntimeException: Could not 
invoke service.. Nested exception is 
org.codehaus.xfire.fault.XFireFault: There must be a method name 
element. /Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js 49 GET mailManager_ajax
org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. Nested 
exception is org.codehaus.xfire.fault.XFireFault: There must be a method name 
element.
exception: 
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:92)
exception: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
exception: $Proxy9.getSimiliarityResults(Unknown Source)
exception: sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
exception: 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
exception: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
exception: java.lang.reflect.Method.invoke(Method.java:585)
exception: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
exception: 
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c573._c4(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js:49)
exception: 
org.mozilla.javascript.gen.c573.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js)
exception: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
exception: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:378)
exception: java.lang.Thread.run(Thread.java:613)
org.codehaus.xfire.fault.XFireFault: There must be a method name element.
cause: 
org.codehaus.xfire.service.binding.WrappedBinding.readMessage(WrappedBinding.java:31)
cause: 
org.codehaus.xfire.soap.handler.SoapBodyHandler.invoke(SoapBodyHandler.java:42)
cause: 
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:98)
cause: org.codehaus.xfire.client.Client.onReceive(Client.java:352)
cause: 
org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:179)
cause: org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:82)
cause: 
org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
cause: 
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:98)
cause: org.codehaus.xfire.client.Client.invoke(Client.java:263)
cause: org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
cause: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
cause: $Proxy9.getSimiliarityResults(Unknown Source)
cause: sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
cause: 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
cause: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
cause: java.lang.reflect.Method.invoke(Method.java:585)
cause: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
cause: org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c573._c4(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js:49)
cause: 
org.mozilla.javascript.gen.c573.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js)
cause: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
cause: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:378)
cause: java.lang.Thread.run(Thread.java:613)


***********************************************************************
***********************************************************************
***********************************************************************
**********************************************************************


JavaException: org.codehaus.xfire.XFireRuntimeException: Could not 
invoke service.. Nested exception is 
org.codehaus.xfire.fault.XFireFault: Can not output XML declaration, 
after other output has already been done. /Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js 4 GET null
org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. Nested 
exception is org.codehaus.xfire.fault.XFireFault: Can not output XML 
declaration, after other output has already been done.
exception: 
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:92)
exception: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
exception: $Proxy1.getPageByUUID(Unknown Source)
exception: sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
exception: 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
exception: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
exception: java.lang.reflect.Method.invoke(Method.java:585)
exception: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
exception: 
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c602._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js:4)
exception: 
org.mozilla.javascript.gen.c602.call(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c600._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js:7)
exception: 
org.mozilla.javascript.gen.c600.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js)
exception: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
exception: 
helma.framework.core.RequestEvaluator.getChildElement(RequestEvaluator.java:933)
exception: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:268)
exception: java.lang.Thread.run(Thread.java:613)
org.codehaus.xfire.fault.XFireFault: Can not output XML declaration, after 
other output has already been done.
cause: org.codehaus.xfire.fault.XFireFault.createFault(XFireFault.java:89)
cause: org.codehaus.xfire.client.Client.invoke(Client.java:267)
cause: org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
cause: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
cause: $Proxy1.getPageByUUID(Unknown Source)
cause: sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
cause: 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
cause: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
cause: java.lang.reflect.Method.invoke(Method.java:585)
cause: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
cause: org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c602._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js:4)
cause: 
org.mozilla.javascript.gen.c602.call(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c600._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js:7)
cause: 
org.mozilla.javascript.gen.c600.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js)
cause: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
cause: 
helma.framework.core.RequestEvaluator.getChildElement(RequestEvaluator.java:933)
cause: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:268)
cause: java.lang.Thread.run(Thread.java:613)


***********************************************************************
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***********************************************************************
**********************************************************************



JavaException: org.codehaus.xfire.XFireRuntimeException: Could not 
invoke service.. Nested exception is 
org.codehaus.xfire.fault.XFireFault: Fault 
/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js 15 GET rssManager_ajax
org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. Nested 
exception is org.codehaus.xfire.fault.XFireFault: Fault
exception: 
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:92)
exception: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
exception: $Proxy9.getSimiliarityResults(Unknown Source)
exception: sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
exception: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
exception: java.lang.reflect.Method.invoke(Method.java:585)
exception: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
exception: 
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c573._c2(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js:15)
exception: 
org.mozilla.javascript.gen.c573.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js)
exception: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
exception: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:378)
exception: java.lang.Thread.run(Thread.java:613)
org.codehaus.xfire.fault.XFireFault: Fault
cause: org.codehaus.xfire.fault.XFireFault.createFault(XFireFault.java:89)
cause: org.codehaus.xfire.client.Client.onReceive(Client.java:365)
cause: 
org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:179)
cause: org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:82)
cause: 
org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
cause: 
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:98)
cause: org.codehaus.xfire.client.Client.invoke(Client.java:263)
cause: org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
cause: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
cause: $Proxy9.getSimiliarityResults(Unknown Source)
cause: sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
cause: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
cause: java.lang.reflect.Method.invoke(Method.java:585)
cause: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
cause: org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c573._c2(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js:15)
cause: 
org.mozilla.javascript.gen.c573.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js)
cause: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
cause: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:378)
cause: java.lang.Thread.run(Thread.java:613)


***********************************************************************
***********************************************************************
***********************************************************************
**********************************************************************


JavaException: org.codehaus.xfire.XFireRuntimeException: Could not 
invoke service.. Nested exception is 
org.codehaus.xfire.fault.XFireFault: Can not output XML declaration, 
after other output has already been done. /Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js 15 GET rssManager_ajax
org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. Nested 
exception is org.codehaus.xfire.fault.XFireFault: Can not output XML 
declaration, after other output has already been done.
exception: 
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:92)
exception: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
exception: $Proxy9.getSimiliarityResults(Unknown Source)
exception: sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
exception: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
exception: java.lang.reflect.Method.invoke(Method.java:585)
exception: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
exception: 
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c573._c2(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js:15)
exception: 
org.mozilla.javascript.gen.c573.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js)
exception: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
exception: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:378)
exception: java.lang.Thread.run(Thread.java:613)
org.codehaus.xfire.fault.XFireFault: Can not output XML declaration, after 
other output has already been done.
cause: org.codehaus.xfire.fault.XFireFault.createFault(XFireFault.java:89)
cause: org.codehaus.xfire.client.Client.invoke(Client.java:267)
cause: org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
cause: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
cause: $Proxy9.getSimiliarityResults(Unknown Source)
cause: sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
cause: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
cause: java.lang.reflect.Method.invoke(Method.java:585)
cause: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
cause: org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c573._c2(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js:15)
cause: 
org.mozilla.javascript.gen.c573.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/Page/Snapins.js)
cause: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
cause: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:378)
cause: java.lang.Thread.run(Thread.java:613)

***********************************************************************
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org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. 
Nested exception is org.codehaus.xfire.fault.XFireFault: Fault
exception: 
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:92)
exception: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
exception: $Proxy1.getPageByUUID(Unknown Source)
exception: sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
exception: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
exception: java.lang.reflect.Method.invoke(Method.java:585)
exception: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
exception: 
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c602._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js:4)
exception: 
org.mozilla.javascript.gen.c602.call(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js)
exception: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
exception: 
org.mozilla.javascript.gen.c600._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js:7)
exception: 
org.mozilla.javascript.gen.c600.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js)
exception: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
exception: 
helma.framework.core.RequestEvaluator.getChildElement(RequestEvaluator.java:933)
exception: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:268)
exception: java.lang.Thread.run(Thread.java:613)
org.codehaus.xfire.fault.XFireFault: Fault
cause: org.codehaus.xfire.fault.XFireFault.createFault(XFireFault.java:89)
cause: org.codehaus.xfire.client.Client.onReceive(Client.java:365)
cause: 
org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:179)
cause: org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:82)
cause: 
org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
cause: 
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:98)
cause: org.codehaus.xfire.client.Client.invoke(Client.java:263)
cause: org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
cause: org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
cause: $Proxy1.getPageByUUID(Unknown Source)
cause: sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
cause: 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
cause: java.lang.reflect.Method.invoke(Method.java:585)
cause: org.mozilla.javascript.MemberBox.invoke(MemberBox.java:174)
cause: org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:202)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c602._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js:4)
cause: 
org.mozilla.javascript.gen.c602.call(/Users/rist/Desktop/helma/apps/sonejcr/Application-WS/PageLookup/PageLookup.js)
cause: org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1442)
cause: 
org.mozilla.javascript.gen.c600._c1(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js:7)
cause: 
org.mozilla.javascript.gen.c600.call(/Users/rist/Desktop/helma/apps/sonejcr/Application/PageLookup/childElements.js)
cause: helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:315)
cause: 
helma.framework.core.RequestEvaluator.getChildElement(RequestEvaluator.java:933)
cause: helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:268)
cause: java.lang.Thread.run(Thread.java:613)