Evo možda zanimljivog teksta o statusu gcj-a u poslednjem Red Hat magazinu (uglavnom oni razvijaju gcj):
http://www.redhat.com/magazine/012oct05/features/java/
The class library is rapidly nearing completion. The development version is 95% complete, as compared to the 1.4 JDK (and 85% complete as compared to 1.5). However, development is ordinarily focused on getting real applications working, not on reaching an arbitrary amount of coverage.
Znači, u međuvremenu za 100% pokrića ipak mora Sun-ova (zar nije već u MDK-u?) ili Blackdown Java…