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From "Vitaliy Tkachenko (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AXIS2-5753) HTTP errors 500 and 400 are not reported appropriately on WS call
Date Tue, 05 Apr 2016 12:36:25 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-5753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vitaliy Tkachenko updated AXIS2-5753:
-------------------------------------
    Description: 
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?

  was:
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 incase 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?


> 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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