FISH-10136 Fix NPE in Payara Micro and Embedded

[Pandrex247]

Description

Adds a fallout clause for if field doesn't exist. The field in question belonged in Mojarra, who have since potentially fixed the issue themselves in eclipse-ee4j/mojarra#5479?

Without this change, the following error is thrown on application deployment/undeployment (most prominently in Micro and Embedded)

[2024-11-13T08:49:24.762+0200] [] [WARNING] [] [jakarta.enterprise.web.util] [tid: _ThreadID=1 _ThreadName=main] [timeMillis: 1731480564762] [levelValue: 900] [[
  Error clearing BeanELResolver cache
java.lang.NullPointerException
	at org.glassfish.web.loader.WebappClassLoader.clearBeanResolver(WebappClassLoader.java:2677)
	at org.glassfish.web.loader.WebappClassLoader.clearBeanELResolverCache(WebappClassLoader.java:2666)
	at org.glassfish.web.loader.WebappClassLoader.stop(WebappClassLoader.java:2054)
	at org.glassfish.web.loader.WebappClassLoader.preDestroy(WebappClassLoader.java:2017)

Need to look into if this entire block of code is still required any more; it seems quite closely tied to Mojarra who have potentially resolved it themselves? Would need to follow it through carefully across redeployments to see if we're still holding on to anything on our side.

Originally introduced here: #6677

Important Info

Blockers

None

Testing

New tests

None

Testing Performed

Started Payara Micro and deployed clusterjsp - no explosions.

Started Payara Server and redeployed classloader-data-api several times - the number of class loaders didn't continually increase.

Testing Environment

Windows 11, Zulu JDK 11.0.25

Documentation

N/A

Notes for Reviewers

None

[breakponchito]

LGTM

[lprimak]

I think Mojarra fixed this.
It's not applicable to any other Faces implementation,
so I think it's safe to remove it and all it's dependent methods below.
Please double-check with ClassLoaderLeak detector:
https://gist.github.com/lprimak/973ce6289dc1e5ed86dc09b62008de97

[lprimak]

Even easier fix:

Just change the error log from WARNING to FINE.
But either way would be the correct fix :)