I hope someone may be able to point me to the right direction to resolve this
problem. I am getting the following error
Caused by: java.lang.UnsupportedOperationException
at java.util.Collections$UnmodifiableList.set(Collections.java:1157)
at
org.jboss.seam.core.Manager.updateCurrentConversationId(Manager.java:112)
at
org.jboss.seam.interceptors.ConversationInterceptor.redirectToExistingConversation(ConversationInterceptor.java:83)
at
org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:46)
The application normally requires an user to login. After logging in, it takes
the user to the Main screen, from there, user can search for items then clicks
on an item to launch a Detail screen of that item. There is a conversation
established so additional clicking on the Main page for the same item would go
to the same Detail page. We want to be able to give the Detail page URL to
another person so they can see this page.
I reworked the detail page so it can take parameters from URL and launched it
into the correct information. I also assigned a different conversation id with
its begin method. Everything works (if the user is already signed on) except
when the signon redirect is put in place. When someone gets the link and if
he/she is not logged in, it would first re-direct it to a signon page before
proceeding to the Detail page. However, after it logs in, it would set the
necessary parameters in the Detail Page but never got to the begin method
(specified by action). The error I saw was UnsupportedOperationException as
stated above. It seems to try to set a conversation id in a list which is not
modifiable. Welcome any suggestions.
Thanks
Ralph
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