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From "Alfred Hiebl (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-4636) Tracing of exceptions
Date Mon, 07 Nov 2011 11:23:51 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-4636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13145348#comment-13145348
] 

Alfred Hiebl commented on CAMEL-4636:
-------------------------------------

See also Camel-Users thread http://camel.465427.n5.nabble.com/Tracing-exceptions-td4964120.html

                
> Tracing of exceptions
> ---------------------
>
>                 Key: CAMEL-4636
>                 URL: https://issues.apache.org/jira/browse/CAMEL-4636
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-core
>    Affects Versions: 2.6.0
>            Reporter: Alfred Hiebl
>
> When a bean in a traced route throws an exception (e.g. NullPointerException) one would
expect to see that in the causedByException property of the DefaultTraceEventMessage. But
the exception is null.
> The reason is that in DefaultTraceEventMessage the causedByException is set to exchange.getException(),
at a time where it is already handled. The exception is still available as property Exchange.EXCEPTION_CAUGHT.
> Suggestion for change:
> {code}
> public DefaultTraceEventMessage(final Date timestamp, final ProcessorDefinition<?>
toNode, final Exchange exchange) {
>         this.tracedExchange = exchange;
>         ...
>         this.causedByException = exchange.getException() != null ? exchange.getException().toString()
> 				: extractExceptionCaught(exchange);
> } 
>  
> // used to set causedByException in cases where the exception is already handled 
> private static String extractExceptionCaught(Exchange exchange) {
>  	Exception exceptionCaught = (Exception) exchange.getProperty(Exchange.EXCEPTION_CAUGHT);
>  	return (exceptionCaught != null ? exceptionCaught.toString() : null);
> }
> {code}

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