If you are asking about a problem you are experiencing, please use the following template, as it will help us help you. If you have a different problem, please delete all of this text 
Kibana version: 6.3.1
Elasticsearch version: 6.3.1
APM Server version: 6.8.5
APM Agent language and version: Java, 1.12
Browser version: Chrome 78.0.3904.108
Original install method (e.g. download page, yum, deb, from source, etc.) and version: Downloaded rpm and installed using yum
Fresh install or upgraded from other version? Fresh
Is there anything special in your setup? For example, are you using the Logstash or Kafka outputs? Are you using a load balancer in front of the APM Servers? Have you changed index pattern, generated custom templates, changed agent configuration etc. Using Logstash
Description of the problem including expected versus actual behavior. Please include screenshots (if relevant): Installed, config and run apm-server (everythings looks good). Installed java-agent and restarded the app. Checked connection with tcpdump and there's no problem. But I can't see any APM data in Kibana.
apm-server automatically created some indexes which I can see.