Websocket Client Could not find an implementation class

Question

I will preface this with I am not using any maven dependencies, yet I know that I am missing a jar file wls-api.jar (at least that is what I have read).

To

Answer 1

Adding

// https://mvnrepository.com/artifact/org.glassfish.tyrus.bundles/tyrus-standalone-client

compile group: 'org.glassfish.tyrus.bundles', name: 'tyrus-standalone-client', version: '1.9'

to my build.gradle file worked for me.