Issue #4888 Ensure HttpSessionListener can access session via #5220
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See issue #4888
The stack trace provided by @manovotn shows weld tries to access a session via a Request from inside a HttpSessionListener. Although that code path is not supported in the servlet api, we want to be as code-safe as possible.
For a description of the cause of the problem, see my explanation in issue #4888
This fix ensures that the newly created session is set onto the Request before any HttpSessionListeners are called.