I have the following test class that tests a simple “/helloWorld” endpoint that is implemented in jax-rs. I am running this as an EAR file in a JBOSS EAP Server locally. When I run the test I get the following: Answer JerseyTest is not compatible with JUnit 5 at the moment. https://github.com/jersey/jersey/issues/3662 From their workaround, add to your class, and