[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2111) coerceToType / javaassist error when converting types for multi selection

[Pete Muir (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-2111?page=comments#action_12402918 ] 
            
Pete Muir commented on JBSEAM-2111:
-----------------------------------

Damian, please try updating your JSF libs to at least 1.2.06 or, ideally, latest, and let me know if the problems is resolved.

We currently haven't qa'd the update of JSF in JBoss 4.2.2, but no problems seen so far.

> coerceToType / javaassist error when converting types for multi selection
> -------------------------------------------------------------------------
>
>                 Key: JBSEAM-2111
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2111
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: JSF Integration
>    Affects Versions: 2.0.0.CR2
>         Environment: Mac OSX. Jboss 4.2.1, Java 1.5
>            Reporter: Damian Harvey
>         Assigned To: Pete Muir
>             Fix For: 2.1.0.GA
>
>         Attachments: Test.zip, Test2_using_Seam1.2.1.GA.zip, Test3.zip
>
>
> When trying to display values in an h:selectManyCheckbox I get an error:
> java.lang.IllegalArgumentException: Cannot convert com.locuslive.odyssey.entity.Groups at 3960f3 of typ
> e class com.locuslive.odyssey.entity.Groups to class com.locuslive.odyssey.entity.Groups_$$_javassis
> t_219
> I have created a very basic project with PERSON, GROUP and PERSONGROUP entities. I've attached it after emptying the lib directory.
> Essentially on the PersonEdit page I want to be able to select which Groups the Person may belong to. This is done with the selectManyCheckbox. The checkbox is populated with a list of GROUPs from a GroupList. It is bound to a variable in the PersonHome called 'groups'. This is a list of Groups that is extracted from the PersonGroup table for that user. 
> The stacktrace is in the forum post. I have also generated the attached project under Seam 1.2.1.GA and the problem is not there.

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