As the latest 1.17 has started causing friction on the number of Java versions necessary in order to support multiple releases of Minecraft, we’re finding that the Webui is being a bit restrictive on how to run different versions in parallel. This post is to help address this until perhaps a dropdown is implemented in the webui–all these changes occur in
server.config file, you may be accustomed to seeing the following lines:
[java] jarfile=minecraft_server.1.17.jar java_xmx=4092 java_tweaks=
Let’s now add an additional line MineOS recognizes to help redirect the java invocation:
[java] java_binary=/path_to_java_goes_here/bin/java jarfile=minecraft_server.1.17.jar java_xmx=4092 java_tweaks=
For this server, and this server only (make changes to servers as desired), the
java_binary will 100% replace whatever the default Java is. You should now be able to run multiple versions of java, i.e., have numerous versions in parallel downloaded at once, and use them at-will.
This functionality has existed since the inception of MineOS, so an update to the webui is not required.