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logout for SSO

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I have implemented Logout for My Application when u r press logout it must logout forum and as well as my application aslo. For this i have implemented as in my application as follows

I have implemented logout.java in Struts
Procedure 1.

HttpServletRequest req = ServletActionContext.getRequest();
HttpServletResponse res = ServletActionContext.getResponse();;
JForumExecutionContext ex = JForumExecutionContext.get();
RequestContext request = (RequestContext)req;
ResponseContext response = (ResponseContext)res;
JForumContext forumContext = null;
forumContext = new JForumContext(req.getContextPath().toString(),

UserAction us=new UserAction();

it gives NullpointerException in JForumExecutionContext. and some time it give can't cast struts context to "jforumcontext" message also.

Procedure 2.

I have written when user click logout .
in html as " /user/logout" in my and UserAction.java



"logoutAdminUser.do" for my application logout.(i am trying to redirect to my application logout )

This is give "/" Name space Exception.

Any body plz Help how to implement logout for SSO.

Thank you,
[originally posted on jforum.net by gopal.g]
Migrated From Jforum.net
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from a HttpServletRequest and HttpServletResponse, you should create an instance of WebRequestContext and WebResponseContext - you're getting a cast excetion because you're, in fact, casting it to the wrong object.

[originally posted on jforum.net by Rafael Steil]
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