RMIC option under is for invoking the rmic command of JDK . This command will let you create stubs and skeleton classes for remote objects using Java RMI. Please refer to Java RMI documentation for more details on rmic and rmic options.
Most options in the above dialog are self-explanatory. Custom options will be passes as is to the rmic command. Add files will let you select Java files whose fully qualified package name of all the classes in the selected Java file is automatically determined and the classes are added to the file list. Delete will delete any selected files from the file list.
Clear All will clear all the options and the file list.
Start will start the rmic command with all the options specified in the dialog and the output from the rmic command can be seen in the output window just like the compiler output.
RMIC options are now saved with Kawa project automatically.