[FIXED] How do I resolve the "java.net.BindException: Address already in use: JVM_Bind" error?

Issue

In Eclipse, I got this error:

run:
     [java] Error creating the server socket.
     [java] Oct 04, 2012 5:31:38 PM cascadas.ace.AceFactory bootstrap
     [java] SEVERE: Failed to create world : java.net.BindException: Address already in use: JVM_Bind
     [java] Java Result: -1
BUILD SUCCESSFUL
Total time: 10 seconds

I'm not sure why it came up now, but it ran fine just a few hours ago. Do I need to restart my machine? How do i get to the bottom of it? I appreciate any tips or advice.

Solution

Yes you have another process bound to the same port.

TCPView (Windows only) from Windows Sysinternals is my favorite app whenever I have a JVM_BIND error. It shows which processes are listening on which port. It also provides a convenient context menu to either kill the process or close the connection that is getting in the way.

Answered By - Guido Simone
Answer Checked By - Katrina (JavaFixing Volunteer)