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From "indika priyantha kumara (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SYNAPSE-577) WSDL Endpoints Stored in the Registry Cannot be Used
Date Sat, 05 Sep 2009 16:16:57 GMT

    [ https://issues.apache.org/jira/browse/SYNAPSE-577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751768#action_12751768
] 

indika priyantha kumara commented on SYNAPSE-577:
-------------------------------------------------


My feeling is simply need a proper lifecycle management implementation.  Any software system
if it provides a set of abstractions to users, those abstractions should be properly managed
including dependency between each abstraction by software system itself.  User only needs
to manage resources they create and software system needs to provide hooks to do that... Usually
means of Lifecycle callbacks. These are old problems that solved by many experts. There are
principles and patterns to do these.  A one good resource about that [1].

Thanks
Indika 

[1] http://www.kircher-schwanninger.de/michael/publications/ResourceLifecycleManager.pdf


> WSDL Endpoints Stored in the Registry Cannot be Used
> ----------------------------------------------------
>
>                 Key: SYNAPSE-577
>                 URL: https://issues.apache.org/jira/browse/SYNAPSE-577
>             Project: Synapse
>          Issue Type: Bug
>          Components: Core, Endpoints
>    Affects Versions: NIGHTLY
>         Environment: Any
>            Reporter: Hiranya Jayathilaka
>            Assignee: Hiranya Jayathilaka
>             Fix For: 1.3, NIGHTLY
>
>         Attachments: WSDLEndpoint.patch
>
>
> 1. Define a valid registry provider in the Synapse configuration
> 2. Store a WSDL endpoint definition in the registry
> 3. Create a proxy service which refers to the WSDL endpoint in the registry
> 4. Start Synapse and send a message to the proxy service
> Message will be dispatched to the back end service, but Synapse will fail to route the
response back. The following NPE occurs.
> [2009-08-31 08:47:51,883] ERROR - NativeWorkerPool Uncaught exception
> java.lang.NullPointerException
> 	at org.apache.synapse.endpoints.WSDLEndpoint.onSuccess(WSDLEndpoint.java:59)
> 	at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:208)
> 	at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:135)
> 	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:178)
> 	at org.apache.synapse.transport.nhttp.ClientWorker.run(ClientWorker.java:230)
> 	at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:58)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
> 	at java.lang.Thread.run(Thread.java:595)
> This is because the endpoint returned by the AbstractRegistry is not initialized and
hence does not have an associated EndpointContext.

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