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From "James Grahn (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AXIS2-5245) Information from RuntimeExceptions escapes Axis2 error handling mechanism
Date Thu, 30 Aug 2012 16:08:07 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-5245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James Grahn updated AXIS2-5245:
-------------------------------

    Attachment: Issue5245-AxisEngine.java.patch

Proposed minimally invasive fix.   Failure reason will be attached to a message context even
in failures resulting from a RuntimeException.
                
> Information from RuntimeExceptions escapes Axis2 error handling mechanism
> -------------------------------------------------------------------------
>
>                 Key: AXIS2-5245
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5245
>             Project: Axis2
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.5.4
>            Reporter: James Grahn
>              Labels: exception-handling
>         Attachments: Issue5245-AxisEngine.java.patch
>
>
> RuntimeExceptions result in abnormal behavior from Axis2.   
> When an AxisFault is thrown, generally the fault is recorded in the message context,
then a FaultFlow is invoked.   Handlers operating in the FaultFlow context may then discover
the fault through examination of the message contexts attached to its operation context.
> If a runtime exception is thrown, however, the exception is lost, even though the FaultFlow
is properly invoked.   FaultFlow Handlers can no longer discover the exception which caused
their invocation.
> I recognize that best practice would include packaging every thrown exception in an AxisFault
or AxisFault derivative.   However, given that Axis2 does attempt to respond sensibly to RuntimeExceptions,
I do not believe that having a "silent" FaultFlow invocation with no access to the originating
exception is proper behavior.
> The fix for this issue would involve (minimally) adding a catch clause to various methods
in AxisEngine to set the failure reason on the message context when a runtime exception is
intercepted, then rethrowing the original exception.   Fault handlers would then be able to
recover information from the originating exception.

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