I have an API jar provided by the server, with the interface with all the JAX-RS annotations.
One of then has an REGEX. Something like:
I can't create a proxy because the validation fails. Analyzing the code I get to
org.apache.cxf.microprofile.client.Validator#checkMethodsForInvalidURITemplates(Class, Method), more specifically to this part (with comments):
Not sure if this is a bug or by spec, but this prevents to use path params with regex, as the only regex that works must match "x".