I have implemented an Asynchronous web service call using the Call back approach via an AsyncHandler. I have noticed an issue where the remote web service is throwing a SOAPFaultException. The issue is the AsynHandler code I wrote does not seem to catch the exception. In fact it never receives a response at all. I am using Apache CXF 2.1.2 to generate the client side code How do I handle this accordingly??? Here is the code making the Asynchronous request :: // Asynchronous WS callback approach ServiceAsyncHandler serviceAsyncHandler = new ServiceAsyncHandler(aSomeObject1, aSomeObject2); Future<?> response = thePort.getAnalysisAsync(criteria, serviceAsyncHandler); Here is the AsyncHandler code :: /** * Aysynchronous KATDataService Handler */ public void handleResponse(Response response) { try { Object object = response.get(); this.analysis = (Analysis)object; // Do some processing here on the response } catch(SOAPFaultException ex) { LOGGER.error("ERROR : KATDataServiceAsyncHandler", ex); } catch (InterruptedException ex) { LOGGER.error("ERROR : KATDataServiceAsyncHandler", ex); } catch (ExecutionException ex) { LOGGER.error("ERROR : KATDataServiceAsyncHandler", ex); } } } It also seems if I place a snippet of code after I make the Asynchronous web service request like so :: try { response.isDone() } catch(SOAPFaultException ex) { LOGGER.error("ERROR : Calling Remote Web Service", ex); } It will catch the SOAPFaultExcpetion occasionally but not all the time so this is not 100% reliable. I still have an issue where the SOAPFaultExcpetion falls through the cracks and is not caught by either the AsynchHandler or the code making the Asynchronous web service call. Please can someone explain why this is and how I go about resolving this issue. -Kyle 13:03:04,062 ERROR [CommonClient] Exception caught while (preparing for) performing the invocation: javax.xml.ws.soap.SOAPFaultException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> TSAKeywordAnalysisServices.katAnalysisException: KAT Data Service Exception: ---> System.Exception: Target Page URL did not have any data. at clsDataService.getKATAnalysis(KATAnalysisCriteria request) in c:\Hudson\jobs\KAT Data Service\workspace\main\App_Code\clsDataService.cs:line 70 at KATDataService10.getKATAnalysis(KATAnalysisCriteria request) in c:\Hudson\jobs\KAT Data Service\workspace\main\App_Code\KATDataService1.0.cs:line 27 --- End of inner exception stack trace --- at KATDataService10.getKATAnalysis(KATAnalysisCriteria request) in c:\Hudson\jobs\KAT Data Service\workspace\main\App_Code\KATDataService1.0.cs:line 32 --- End of inner exception stack trace --- at org.jboss.ws.core.jaxws.SOAPFaultHelperJAXWS.getSOAPFaultException(SOAPFaultHelperJAXWS.java:84) at org.jboss.ws.core.jaxws.binding.SOAP11BindingJAXWS.throwFaultException(SOAP11BindingJAXWS.java:107) at org.jboss.ws.core.CommonSOAPBinding.unbindResponseMessage(CommonSOAPBinding.java:579) at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:381) at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:290) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:170) at org.jboss.ws.core.jaxws.client.ClientProxy.access$000(ClientProxy.java:60) at org.jboss.ws.core.jaxws.client.ClientProxy$AsyncRunnable.run(ClientProxy.java:260) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269) at java.util.concurrent.FutureTask.run(FutureTask.java:123) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675) at java.lang.Thread.run(Thread.java:595) 13:03:04,062 ERROR [ClientProxy] Cannot dispatch message javax.xml.ws.soap.SOAPFaultException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> TSAKeywordAnalysisServices.katAnalysisException: KAT Data Service Exception: ---> System.Exception: Target Page URL did not have any data. at clsDataService.getKATAnalysis(KATAnalysisCriteria request) in c:\Hudson\jobs\KAT Data Service\workspace\main\App_Code\clsDataService.cs:line 70 at KATDataService10.getKATAnalysis(KATAnalysisCriteria request) in c:\Hudson\jobs\KAT Data Service\workspace\main\App_Code\KATDataService1.0.cs:line 27 --- End of inner exception stack trace --- at KATDataService10.getKATAnalysis(KATAnalysisCriteria request) in c:\Hudson\jobs\KAT Data Service\workspace\main\App_Code\KATDataService1.0.cs:line 32 --- End of inner exception stack trace --- at org.jboss.ws.core.jaxws.SOAPFaultHelperJAXWS.getSOAPFaultException(SOAPFaultHelperJAXWS.java:84) at org.jboss.ws.core.jaxws.binding.SOAP11BindingJAXWS.throwFaultException(SOAP11BindingJAXWS.java:107) at org.jboss.ws.core.CommonSOAPBinding.unbindResponseMessage(CommonSOAPBinding.java:579) at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:381) at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:290) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:170) at org.jboss.ws.core.jaxws.client.ClientProxy.access$000(ClientProxy.java:60) at org.jboss.ws.core.jaxws.client.ClientProxy$AsyncRunnable.run(ClientProxy.java:260) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269) at java.util.concurrent.FutureTask.run(FutureTask.java:123) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675) at java.lang.Thread.run(Thread.java:595) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4238289#... 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