[MYFACES-4639] Implementation ClassUtils needs "newInstance" methods added to support OSGI runtimes

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Volodymyr Siedlecki
• Created: 08/Nov/23 21:14
• Updated: 09/Nov/23 10:59

Description

This is basically the same issue as https://issues.apache.org/jira/browse/MYFACES-4449

This variant was originally reported here: https://github.com/OpenLiberty/open-liberty/issues/26760

However, the CNFE occurs with the newInstance methods since the classes are looked up via the API classloader and therefore not found (since the classes exist in the Impl and OSGI creates seperate between bundles. See the discussion in 4449 for more information)

Example of error:
[ERROR   ] Class org.apache.myfaces.push.WebsocketInitRenderer not found
org.apache.myfaces.push.WebsocketInitRenderer cannot be found by io.openliberty.jakarta.faces.4.0_1.0.84.202311061333

This error is related to whether the renderkit is an instance of LazyRenderKit. If it's not, then the standard form look up used (via newInstance). 

LazyRenderKit code was added via MYFACES-3815 : https://github.com/apache/myfaces/commit/93a2ddf060d04cea658f58f9223c22b5badeea90

I'm not entirely sure how this happens in the users case above, but we should move these methods again to avoid these errors. I'll have a PR up soon.