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From "Andreas Veithen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AXIS2-5753) HTTP errors 500 and 400 are not reported appropriately on WS call
Date Thu, 07 Apr 2016 20:07:25 GMT

    [ https://issues.apache.org/jira/browse/AXIS2-5753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15230961#comment-15230961
] 

Andreas Veithen commented on AXIS2-5753:
----------------------------------------

bq. Is there some real reason why exception isn't just thrown anyway including errors 500
and 400?

Yes, compliance with the SOAP specs. E.g. see section 6.2 of the SOAP 1.1 spec.

> HTTP errors 500 and 400 are not reported appropriately on WS call
> -----------------------------------------------------------------
>
>                 Key: AXIS2-5753
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5753
>             Project: Axis2
>          Issue Type: Bug
>          Components: transports
>    Affects Versions: 1.6.4, 1.7.1
>         Environment: Win32x64, Tomcat7, ODE 1.3.6
>            Reporter: Vitaliy Tkachenko
>            Priority: Minor
>
> On any WS call made in ODE (for example, I think the same is expected anyway using the
Axis2) all HTTP errors are reported appropriately e.g. 404 (Page Not Found):
> [2016-04-05 14:58:50,788] [ODEServer-18] [ERROR] [org.apache.ode.axis2.SoapExternalService$1$1:306]
Couldn't call external web service 'http://ua007478/error404'.
> Error sending message (mex={PartnerRoleMex#4611686018427387916 [PID {http://http}_00000_http_cafb23ab-1f16-4997-a4de-fa2e2913e275---14]
calling org.apache.ode.bpel.epr.URLEndpoint@483477f3.get(...) Status ASYNC}): Transport error:
404 Error: Not Found
> org.apache.axis2.AxisFault: Transport error: 404 Error: Not Found
>         at org.apache.axis2.transport.http.HTTPSender.handleResponse(HTTPSender.java:310)
>         at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:194)
>         at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:75)
>         at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:396)
>         at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:223)
>         at com.serena.ode.throttling.SerenaThrottledHTTPTransportSender.invoke(SerenaThrottledHTTPTransportSender.java:43)
>         at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443)
>         at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:406)
>         at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:229)
>         at org.apache.axis2.client.OperationClient.execute(OperationClient.java:165)
>         at org.apache.ode.axis2.SoapExternalService$1$1.call(SoapExternalService.java:266)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:745)
> But only in case of 2 errors 500 (Internal Server Error) and 400 (Bad Request) the message
is still parsed further which causes [WstxUnexpectedCharException: Unexpected character '"']
of course as the message contains no message but HTTP error description:
> [2016-04-05 14:57:23,361] [ODEServer-16] [ERROR] [org.apache.ode.axis2.SoapExternalService$1$1:306]
Couldn't call external web service 'http://ua007478/error500'.
> Error sending message (mex={PartnerRoleMex#4611686018427387914 [PID {http://http}_00000_http_cafb23ab-1f16-4997-a4de-fa2e2913e275---14]
calling org.apache.ode.bpel.epr.URLEndpoint@674821f8.get(...) Status ASYNC}): com.ctc.wstx.exc.WstxUnexpectedCharException:
Unexpected character '"' (code 34) in DOCTYPE declaration; expected a space between public
and system identifiers
>  at [row,col {unknown-source}]: [1,50]
> org.apache.axis2.AxisFault: com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected
character '"' (code 34) in DOCTYPE declaration; expected a space between public and system
identifiers
>  at [row,col {unknown-source}]: [1,50]
> 	at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
> 	at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:123)
> 	at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:67)
> 	at org.apache.axis2.description.OutInAxisOperationClient.handleResponse(OutInAxisOperation.java:354)
> 	at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:421)
> 	at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:229)
> 	at org.apache.axis2.client.OperationClient.execute(OperationClient.java:165)
> 	at org.apache.ode.axis2.SoapExternalService$1$1.call(SoapExternalService.java:266)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.axiom.om.DeferredParsingException: com.ctc.wstx.exc.WstxUnexpectedCharException:
Unexpected character '"' (code 34) in DOCTYPE declaration; expected a space between public
and system identifiers
>  at [row,col {unknown-source}]: [1,50]
> 	at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuilder.java:706)
> 	at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:199)
> 	at org.apache.axiom.core.CoreParentNodeSupport.ajc$interMethod$org_apache_axiom_core_CoreParentNodeSupport$org_apache_axiom_core_CoreParentNode$buildNext(CoreParentNodeSupport.aj:58)
> 	at org.apache.axiom.om.impl.llom.OMDocumentImpl.buildNext(OMDocumentImpl.java:1)
> 	at org.apache.axiom.core.CoreParentNodeSupport.ajc$interMethodDispatch1$org_apache_axiom_core_CoreParentNodeSupport$org_apache_axiom_core_CoreParentNode$buildNext(CoreParentNodeSupport.aj)
> 	at org.apache.axiom.core.CoreParentNodeSupport.ajc$interMethod$org_apache_axiom_core_CoreParentNodeSupport$org_apache_axiom_core_CoreParentNode$coreGetFirstChild(CoreParentNodeSupport.aj:75)
> 	at org.apache.axiom.om.impl.llom.OMDocumentImpl.coreGetFirstChild(OMDocumentImpl.java:1)
> 	at org.apache.axiom.core.CoreParentNodeSupport.ajc$interMethodDispatch1$org_apache_axiom_core_CoreParentNodeSupport$org_apache_axiom_core_CoreParentNode$coreGetFirstChild(CoreParentNodeSupport.aj)
> 	at org.apache.axiom.core.CoreDocumentSupport.ajc$interMethod$org_apache_axiom_core_CoreDocumentSupport$org_apache_axiom_core_CoreDocument$coreGetDocumentElement(CoreDocumentSupport.aj:33)
> 	at org.apache.axiom.om.impl.llom.OMDocumentImpl.coreGetDocumentElement(OMDocumentImpl.java:1)
> 	at org.apache.axiom.om.impl.common.AxiomDocumentSupport.ajc$interMethod$org_apache_axiom_om_impl_common_AxiomDocumentSupport$org_apache_axiom_om_impl_common_AxiomDocument$getOMDocumentElement(AxiomDocumentSupport.aj:25)
> 	at org.apache.axiom.om.impl.llom.OMDocumentImpl.getOMDocumentElement(OMDocumentImpl.java:1)
> 	at org.apache.axiom.om.impl.builder.StAXOMBuilder.getDocumentElement(StAXOMBuilder.java:582)
> 	at org.apache.axiom.om.impl.builder.StAXOMBuilder.getDocumentElement(StAXOMBuilder.java:578)
> 	at org.apache.axis2.transport.TransportUtils.createDocumentElement(TransportUtils.java:198)
> 	at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:145)
> 	at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:108)
> 	... 10 more
> Caused by: com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character '"' (code
34) in DOCTYPE declaration; expected a space between public and system identifiers
>  at [row,col {unknown-source}]: [1,50]
> 	at com.ctc.wstx.sr.StreamScanner.throwUnexpectedChar(StreamScanner.java:648)
> 	at com.ctc.wstx.sr.BasicStreamReader.startDTD(BasicStreamReader.java:2482)
> 	at com.ctc.wstx.sr.BasicStreamReader.nextFromPrologBang(BasicStreamReader.java:2398)
> 	at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2058)
> 	at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
> 	at org.apache.axiom.util.stax.wrapper.XMLStreamReaderWrapper.next(XMLStreamReaderWrapper.java:225)
> 	at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuilder.java:691)
> 	... 26 more
> This behavior prevents user to proper analyze the cause of the problem with the WS -
it requires time and efforts to understand that the original problem is in e.g. commonly used
error 500 means the WS server has some teporarily problems.
> I've found that the cause why Axis2 is doing this is the code in the org.apache.axis2.transport.http.HTTPSender.handleResponse
function (in the 1.6.4 or corresponding HTTPSender implementations in the 1.7.1) which derives
the logic if (statusCode == HttpStatus.SC_INTERNAL_SERVER_ERROR || statusCode == HttpStatus.SC_BAD_REQUEST)
allowing the message to be parsed (unless non blocking API / transport flag is set) instead
of throwing exception anyway. Is there some real reason why exception isn't just thrown anyway
including errors 500 and 400?



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