So, Novell Netware 5 is an absolutely cursed operating system. As far as I can tell, it boots Caldera DOS as a stage-0, then goes into NWSERVER kernel that uses its own everything, and from there boots a JAVA shell, and from there there's an init also presumably in Java, that starts binaries for X-for-NW, IceWM-for-NW and, if I were to believe Novell's docs, a Java-based desktop. It definitely looks and feels like Java. Java OS that I did not know existed