I downloaded and compiled the Gradle-based hibernate-jpa-api-2.10.Final, imported it as "hibernate-jpa-2.1-api" into Eclipse, started WildFly in debug mode, tried to set port 8787 for hibernate-jpa-2.1-api within "Debug As... > Debug Configurations > Remote Java Application". But then I got this error message, and now I'm lost.

Failed to connect to remote VM. Connection refused.
Connection refused: connect