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From Jörg Heinicke (JIRA) <j...@apache.org>
Subject [jira] Updated: (COCOON-1655) JavaFlow/CForm/select-list crash
Date Thu, 12 Oct 2006 08:18:36 GMT
     [ http://issues.apache.org/jira/browse/COCOON-1655?page=all ]

Jörg Heinicke updated COCOON-1655:
----------------------------------


> JavaFlow/CForm/select-list crash
> --------------------------------
>
>                 Key: COCOON-1655
>                 URL: http://issues.apache.org/jira/browse/COCOON-1655
>             Project: Cocoon
>          Issue Type: Bug
>          Components: Blocks: Java Flow
>    Affects Versions: 2.1.7
>         Environment: Operating System: other
> Platform: Other
>            Reporter: Benoit Deshaies
>         Assigned To: Cocoon Developers Team
>         Attachments: javaflow-continuationstack.diff
>
>
> I get an error whenever I include an <fd:selection-list src="cocoon:/XYZ"> where
> both the form and the XYZ pipeline use JavaFlow. The error is:
> No continuation is running 
> cause: java.lang.IllegalStateException: No continuation is running
> java.lang.IllegalStateException: No continuation is running
> 	at
> org.apache.cocoon.components.flow.java.Continuation.suspend(Continuation.java:79)
> 	at
> org.apache.cocoon.components.flow.java.AbstractContinuable.sendPageAndWait(AbstractContinuable.java:75)
> 	at org.apache.cocoon.forms.flow.java.FormInstance.show(FormInstance.java:181)
> The reason is that when cocoon:/XYZ runs, a continuation is created for the same
> thread as the form continuation. The continuationsmap in Continuation class gets
> overwritten. When cocoon:/XYZ returns, the map is cleared for the thread,
> leaving no continuation for the form.
> Here's a bit of code from the app to help explain.
> The form contains a selection list defined as:
> <fd:field id="user">
>    <fd:datatype base="string"/>
>    <fd:selection-list src="cocoon:/UserSelectList" dynamic="true"/>
> </fd:field>
> The sitemap contains:
> <map:match pattern="UserSelectList">
>    <map:call function="generateUserList"/>
> </map:match>
> Then I have the following JavaFlow
> public void doGenerateUserList() throws Exception {
>    Collection userList = databaseManager.getUserList();
>    sendPage("user_list", new VarMap().add("list", userList) );
> }

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