[jboss-jira] [JBoss JIRA] Commented: (JBREM-675) Problems with Servlet invoker

[Ron Sigal (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBREM-675?page=comments#action_12385458 ] 
            
Ron Sigal commented on JBREM-675:
---------------------------------

The default exception handling behavior is now to return the exception thrown by the invocation handler.  To turn off that behavior, so that an error message is returned, it is necessary to add the parameter org.jboss.remoting.transport.http.HTTPMetadataConstants.DONT_RETURN_EXCEPTION (actual value "dont-return-exception") with a value of "true" to the metadata map received by ServerServletInvoker.  For example, "dont-return-exception=true" could be added to the InvokerLocator.

This change is related to JBREM-813 "ServletServerInvoker should return an exception instead of just an error message".

> Problems with Servlet invoker
> -----------------------------
>
>                 Key: JBREM-675
>                 URL: http://jira.jboss.com/jira/browse/JBREM-675
>             Project: JBoss Remoting
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: transport
>    Affects Versions: 1.4.6.GA, 2.0.0.GA (Boon)
>            Reporter: Tom  Elrod
>         Assigned To: Ron Sigal
>             Fix For: 2.4.0.Beta1 (Pinto)
>
>         Attachments: ServletServerInvoker.java
>
>
> Several problems with servlet invoker:
> 1) There can't be two servlet invokers (it's necessary, for example, if you want to use them for JBoss Messagning and for EJBs - they require separate connectors) because ObjectName is hard-coded in ServletServerInvoker.java
> 2) Null returns from invokers are sent to client as empty 204 responses and custom marshallers have no change to process return value. This breaks JBoss Messaging which expects that EVERY message contains at least two bytes (version tag and format tag).

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