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From "Brian (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-5231) NoSuchElementException in ClientFaultConverter when stack trace message contains line breaks
Date Mon, 02 Jun 2014 21:41:02 GMT

    [ https://issues.apache.org/jira/browse/CXF-5231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14015933#comment-14015933
] 

Brian commented on CXF-5231:
----------------------------

We are still seeing this issue with 3.0.0-milestone1, let us know what you need to help reproduce
it.

> NoSuchElementException in ClientFaultConverter when stack trace message contains line
breaks
> --------------------------------------------------------------------------------------------
>
>                 Key: CXF-5231
>                 URL: https://issues.apache.org/jira/browse/CXF-5231
>             Project: CXF
>          Issue Type: Bug
>    Affects Versions: 2.7.3, 2.7.6
>            Reporter: JBE
>            Assignee: Freeman Fang
>             Fix For: 2.6.10, 2.7.7, 3.0.0-milestone1
>
>
> On server side, I have enabled those two flags in order to be able to retrieve the full
exception in client :
> {code}
> Message.FAULT_STACKTRACE_ENABLED -> true
> Message.EXCEPTION_MESSAGE_CAUSE_ENABLED -> true
> {code}
> The problem is that one of the exception message contains a line break "\n" character.
Thus when the exception is thrown, here is what I have on client side with version 2.7.6 :
> {code}
> java.util.NoSuchElementException
> 	at java.util.StringTokenizer.nextToken(StringTokenizer.java:349)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.parseStackTrackLine(ClientFaultConverter.java:288)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.getCause(ClientFaultConverter.java:279)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.setStackTrace(ClientFaultConverter.java:247)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.handleMessage(ClientFaultConverter.java:80)
> 	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271)
> 	at org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:113)
> 	at org.apache.cxf.binding.soap.interceptor.CheckFaultInterceptor.handleMessage(CheckFaultInterceptor.java:69)
> 	at org.apache.cxf.binding.soap.interceptor.CheckFaultInterceptor.handleMessage(CheckFaultInterceptor.java:34)
> 	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271)
> 	at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:811)
> 	at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1590)
> 	at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1486)
> 	at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1305)
> 	at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
> 	at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:623)
> 	at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
> 	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271)
> 	at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:541)
> 	at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:474)
> 	at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:377)
> 	at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:330)
> 	at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
> 	at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:134)
> 	at com.sun.proxy.$Proxy71.execute(Unknown Source)
> 	at com.mycompany.client.WebServiceClient.main(WebServiceClient.java:111)
> Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: Fault string, and possibly
fault code, not set
> 	at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:156)
> 	at com.sun.proxy.$Proxy71.execute(Unknown Source)
> 	at com.mycompany.client.WebServiceClient.main(WebServiceClient.java:111)
> Caused by: java.util.NoSuchElementException
> 	at java.util.StringTokenizer.nextToken(StringTokenizer.java:349)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.parseStackTrackLine(ClientFaultConverter.java:288)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.getCause(ClientFaultConverter.java:279)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.setStackTrace(ClientFaultConverter.java:247)
> 	at org.apache.cxf.interceptor.ClientFaultConverter.handleMessage(ClientFaultConverter.java:80)
> 	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271)
> 	at org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:113)
> 	at org.apache.cxf.binding.soap.interceptor.CheckFaultInterceptor.handleMessage(CheckFaultInterceptor.java:69)
> 	at org.apache.cxf.binding.soap.interceptor.CheckFaultInterceptor.handleMessage(CheckFaultInterceptor.java:34)
> 	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271)
> 	at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:811)
> 	at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1590)
> 	at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1486)
> 	at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1305)
> 	at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
> 	at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:623)
> 	at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
> 	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:271)
> 	at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:541)
> 	at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:474)
> 	at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:377)
> 	at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:330)
> 	at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
> 	at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:134)
> 	... 2 more
> {code}
> After debugging, I can see that in the getCause method of ClientFaultConverter, you are
using a StringTokenizer to iterate through different lines.
> {quote}
> StringTokenizer st = new StringTokenizer(ss, "\n");
> {quote}
> When it comes to the exception message, we have this kind of string :
> {quote}
> Caused by: beginning of the message
> end of the message
> first line of stack trace
> {quote}
> Thus this piece of code:
> {code}
> private Throwable getCause(StringTokenizer st, String firstLine) {
>         // The actual exception class of the cause might be unavailable at the
>         // client -> use a standard throwable to represent the cause.
>         Throwable res = new Throwable(firstLine.substring(firstLine.indexOf(":") + 2));
>         List<StackTraceElement> stackTraceList = new ArrayList<StackTraceElement>();
>         while (st.hasMoreTokens()) {
>             String oneLine = st.nextToken();
>             if (oneLine.startsWith("Caused by:")) {
>                 Throwable nestedCause = getCause(st, oneLine);
>                 res.initCause(nestedCause);
>                 break;
>             }
>             stackTraceList.add(parseStackTrackLine(oneLine));
>         }
>         StackTraceElement[] stackTraceElement = new StackTraceElement[stackTraceList.size()];
>         res.setStackTrace(stackTraceList.toArray(stackTraceElement));
>         return res;
>     }
> {code}
> will result in calling "parseStackTrackLine" on element "end of the message" which causes
the exception.



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