quarkus: Error with HTTP POST using "REST Data with Panache" extension

Describe the bug HTTP POST with results in an error, but GET, PUT, and DELETE work.

Expected behavior HTTP POST should add entity to H2 database.

Actual behavior Error on HTTP POST:

RESTEASY012020: Discovery failed for method org.acme.rest.PersonControllerImpl_772bba7f3925f61a49c0d93159012a40b2de28d6.delete: RESTEASY012005: Cannot guess resource type for service discovery

To Reproduce Reproducer here.

• mvn quarkus:dev
• Run example commands in reproducer README.md

Environment (please complete the following information): java -version output:

openjdk version "11.0.6" 2020-01-14
OpenJDK Runtime Environment GraalVM CE 20.0.0 (build 11.0.6+9-jvmci-20.0-b02)
OpenJDK 64-Bit Server VM GraalVM CE 20.0.0 (build 11.0.6+9-jvmci-20.0-b02, mixed mode, sharing)

Additional context I’m a really nice guy.