I have a custom JSF resource handler (ResourceHandlerWrapper) which uses ResourceHandler.RESOURCE_IDENTIFIER. The contents of that constant is currently not updated in die class files in WildFly 24 Beta1.
I've modified the file impl/ecl/src/main/resources/org/wildfly/extras/transformer/eclipse/jakarta-direct.properties and added the following line:
/javax.faces.resource=/jakarta.faces.resource
That fixed it for me.