terminal – Find out how to Examine the Utilization of a TCP Port on Mac

I get an error {that a} port I’m attempt to hyperlink in a docker-compose is being utilized by one thing else.

I can see my ports which are listening utilizing advised instructions from right here: How can I listing my open community ports with netstat?

In my terminal I am getting one thing appears roughly just like the beneath:

Command   Pid         Consumer     Fd    Kind System             Dimension/Off  Node    Title
java      343        _hivesvc  179u  IPv6 0x31e0f5f4193134b3      0t0  TCP     localhost:8999 (LISTEN)

How can I additional examine what’s using this port? I assume the System is the element I am searching for? However the hexadecimal hash does not inform me something I can interpret.