[WFLY-18353] Update TestCustomPrincipalTransformer to no longer rely on the Elytron subsystem

[cam-rod]

https://issues.redhat.com/browse/WFLY-18353

This fix is also needed to fully implement wildfly/wildfly-core#5561.

[wildfly-bot]

/cc @fjuma

[fjuma]

Thanks @cam-rod! Just a very minor comment, would be good to update the commit message and issue title to something like "Update the TestCustomPrincipalTransformer to no longer rely on the elytron subsystem".

Would you be able to check if we can also remove the org.wildfly.core.wildfly-elytron-integration test dependency now too?

[cam-rod]

Thanks @cam-rod! Just a very minor comment, would be good to update the commit message and issue title to something like "Update the TestCustomPrincipalTransformer to no longer rely on the elytron subsystem".

Would you be able to check if we can also remove the org.wildfly.core.wildfly-elytron-integration test dependency now too?

Updated the title and removed the subsystem dependency

[fjuma]

@cam-rod Looks like there are some compilation failures.

[cam-rod]

Thanks for the heads up, looks like the CredentialStore tests were trying to reuse a subsystem error message. I directly copied the string over and everything seems fine now.

[fjuma]

Thanks @cam-rod!

[bstansberry]

Thanks @cam-rod and @fjuma