I found the GCJ Web Browser Plugin 0.95 (package gcjwebplugin) It pops up with:
"GNU Classpath's security implementation is not complete. HOSTILE APPLETS WILL STEAL AND/OR DESTROY YOUR DATA!" and afterwards doesn't work either. Probably i would be satisfied with only some rudimentary browser java support. Does anybody have a link where i can test blackdown vs gij plugin ? m°