Java – fedora Jconsole location

From what I understand, JMX is using 8686 as the port for the RMI registry, but JConsole connects there only to find the port to use for the JMX server, which is dynamically allocated. You might be running into an issue of having a firewall block access to this other port. You could verify this by using a remote desktop program to connect to the server, and then run JConsole locally (on the server). If it connects, then I bet this is your issue.

Hope this helps...

After you unpack the linux bin, You have to let system know.

alternatives --install /usr/bin/java java /path/to/your/java 10

then you can config it with

alternatives --config java