I tried the blackdown rc1 for amd64 and after a few seconds of running my app, I get the attached error. On SuSE, the jvm process just silently exits in roughly the same amount of time.
/root/j2sdk-1_4_2_03-linux-i586.bin: ./install.sfx.16985: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory