Memory Leak with JSF's ViewScopeContextualStorage (MYFACES-4433)

[volosied]

Describe the bug
There is a small memory leak in the JSF features. CDI ViewScoped beans are stored within the ViewScopeContextualStorage object, and these beans are removed at the end of their lifecycle. Each new view creates another ViewScopeContextualStorage to store the beans. However, each ViewScopeContextualStorage is not deleted after the view changes. Instead, it's only deleted at session expiration.

Note that this leak is very small, but may still had up over time until the session expires.

Steps to Reproduce
Applications uses CDI ViewScoped beans

Expected behavior
No memory leak should occur. ViewScopeContextualStorage should be removed entirely after the beans it holds are destroyed.

Diagnostic information:

• OpenLiberty Version: Up and including 22.0.0.5
• Affected feature(s) jsf-2.2, jsf-2.3, and faces-3.0
• Java Version: N/A
• server.xml configuration: N/A

Additional context
Open Source Issue: https://issues.apache.org/jira/browse/MYFACES-4433