Add the ability for extensions to exclude GraalVM config from jars

[geoand]

Resolves: #17482

[jaikiran]

At a high level, keeping aside the 2 arg value comment that I added, I think we should perhaps make this ExcludeConfigBuildItem a bit more usable for extension developers, if possible. What I mean is, the value they provide to this build item is expected to be a jar file name (or regex). Expecting them to hardcode/pass these jar file names or regex I think could be brittle (because they then have to go check how the dependency jar name looks like, does it have a version included in its name etc...). Perhaps we should allow them to pass a Class instance to this build item and we internally then find the java.security.CodeSource of that specific class and then apply the --exclude-config against that jar name (which we get dynamically via the CodeSource)? For example (a completely random one), if they want to exclude a MySQL driver jar's native configuration resource, then instead of knowing that jar's name, they could just specify the Class instance of the MySQL driver (or maybe even the classname?) and we then go find the right jar that needs to be excluded. I think expecting a Class (name) or some such thing in the build item will probably make this much more robust and easy to use than jar names.

[geoand]

@jaikiran yeah that makes sense, but I would first like @Sanne and @ppalaga to give it a try with the use cases they have in mind.
If it indeed turns out to be burden to specify strings, we can certainly make it easier using things like you mention.

Since we are only at the beginning of the 2.3 development cycle, we have plenty of time to improve on this.

[Sanne]

Looks good in principle, but there's some changes that seem unrelated.

[ppalaga]

The PR looks good, thanks. I do not think we have anything waiting urgently for this ATM.

[geoand]

@Sanne are you OK with this?

[Sanne]

@geoand yes sure. I was hoping to try it out as well, but couldn't get to that yet - I'll do it soon but it's no reason to hold you back.

[geoand]

👍🏼