Eclipse Start Weblogic in debug Mode error : “Failed to connect to remote VM”

Question

I know this question may be asked several times, but my question is a little bit different.

I can start Weblogic server in Eclipse without error.

I tried to start in Eclipse Weblogic Server in debug mode to debug a LOCAL application (not remote debug), but I got the “Failed to connect to remote VM” error. To make sure the problem is from Eclipse, I started manually Weblogic with startWeblogic.cmd with debugFlag=true in the bin\setDomainEnv.cmd, and then in Eclipse tried debugging Remote Java Application with the same debug port, the debug worked without error.

I also tried to compare the output of both launch method, they both contain the option for "Starting WLS with line": -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,address=8022,server=y,suspend=n. The only difference is that in Eclipse there's the java version, but no in Weblogic version.

I tried the solution in Eclipse Error: “Failed to connect to remote VM”, checking whether the debug port is occupied, and it is occupied by the same process java.

Another strange thing is that when I launch debug mode in Eclipse when the server is stopped, the error appears once. When I launch debug when in Eclipse when the server is started, the same error appears twice.

I'm using proxy in Eclipse, and I have to. But I was using the same configuration before when there was no such error.

Could you please help me with something I can check for the Weblogic Eclipse plugin? Thanks very much!

Answer 1

In your remote machine, try to disable the firewall and then try connecting it. If firewall is enabled this is a common error we get. Ex: service firewalld stop (or) systemctl stop firewalld