I have read the 'disapproved' section where you list: Frinika, Subsonic, Sonogram, Laoe, HDTVTestPattern, MagicLantern, Jpo, Fir4j, JavaPoint, MindRaider, ProjectLibre 1.5.2, Makagiga, Java Outline and, Smartgit as java applications that do not work for various reasons. Joeffice is not on that list.
I know that Pete was told that it requires java 7 but I have both the windows installer version and the zip version working on win XP in a VM using java 6.
When I get some spare time I will try and work out what the linux shell script does to start the program to see if it will or will not work on OS/2.