How to confirm if my apm-server is collecting the data from apm agent

Hi can you post two more things can you restart the APM server and post the first 50 lines or so from the APM server looks like it is having trouble connecting to elasticsearch ... Also can you post the output.elasticsearch section of the apm-server.yml. Thanks

Please make sure you are using a supported technology

And also are you properly configuring JBoss

Also can you please take a look at this