[weld-issues] [JBoss JIRA] Created: (WELD-448) invoking sendRedirect() in a JSP causes WELD-001303

[Dan Allen (JIRA)]

invoking sendRedirect() in a JSP causes WELD-001303
---------------------------------------------------

                 Key: WELD-448
                 URL: https://jira.jboss.org/jira/browse/WELD-448
             Project: Weld
          Issue Type: Bug
          Components: Conversations
    Affects Versions: 1.0.1.CR2
            Reporter: Dan Allen
             Fix For: 1.0.1.GA


When sendRedirect() is used inside of a JSP page, it results in the exception WELD-001303: No active contexts for scope type @ConversationScoped

A source of this error is a typical /index.jsp redirector page:

<% response.sendRedirect("home.jsf"); %>

The ConversationPropagationFilter is wrapping all requests (not just JSF requests). The conversation scope is only active during JSF requests. The problem comes when ConversationPropagationFilter traps calls to sendRedirect(). It first checks whether the conversation is transient. But this check mandates that the conversation scope be active.

ConverationPropagationFilter.java:
...
@Override
public void sendRedirect(String path) throws IOException
{
   ConversationImpl conversation = conversation(ctx);
   if (!conversation.isTransient())
   {
      ...
   }
   super.sendRedirect(path);
}
...

ConversationImpl.java
...
public boolean isTransient()
{
   checkConversationActive();
   return _transient;
}
...

I don't understand why isTransient() is enforcing that a conversation be active. If it's not active, then that should be considered transient (or there needs to be a portable way of checking if it's active.

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