[jira] Resolved: (WW-1495) Some actions that use Generics make OGNL throw ClassCastException

["Don Brown (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/struts/browse/WW-1495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Don Brown resolved WW-1495.
---------------------------

       Resolution: Duplicate
    Fix Version/s:     (was: 2.0.8)

Added OGNL ticket: http://jira.opensymphony.com/browse/OGNL-80

> Some actions that use Generics make OGNL throw ClassCastException
> -----------------------------------------------------------------
>
>                 Key: WW-1495
>                 URL: https://issues.apache.org/struts/browse/WW-1495
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Actions, Expression Language
>    Affects Versions: 2.0.1
>         Environment: Kubuntu Linux 6.06 and 6.10 running Eclipse 3.2 with Web Tools with an Apache Tomcat 5.5 integrated into the IDE.
>            Reporter: Vitor Souza
>         Attachments: OgnlIssue.war, OgnlIssue.zip, OgnlRuntime.java
>
>
> When the action class extends a class that uses generics (e.g. public class ManageEmployeeAction extends CrudAction<Employee, Long> { }) and data is sent from the web page (using Struts Forms built by the tag library) to be set in a property from the class that is inherited from the superclass and defined as generic (e.g., protected I[] ids;), OGNL cannot determine the type of the property, falls back to String[] and throws a ClassCastException.
> This issue has been further discussed in the forum: http://forums.opensymphony.com/thread.jspa?threadID=48752. Attachments are provided to illustrate the issue and propose a starting point for the fix. However, it should NOT be considered a patch, since the creator of this "hack" doesn't have enough knowledge of OGNL and Generics to assure its general correctness.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.