To enable the Java policy settings, save the configuration to a file.
From the menu "File(F)" -> "Save(S)", save the configuration to the file in any given path.
After saving the file, open the saved file in text format and make sure that the inputted values are written in the following format.
Displayed example)
grant codeBase "http://10.20.30.40:8081/jars/*"
permission java.net.SocketPermission "10.20.30.40:*", "connect, resolve, accept";
};
grant codeBase "http://10.20.30.41:8081/jars/*" {
permission java.net.SocketPermission "10.20.30.41:*", "connect, resolve, accept";
};