sun-jdk15 do not work on netbsd4-amd64

[Water NB <netbsd78%126.com@localhost>]

I have a netbsd4-amd64 PC, when I run

# /usr/pkg/java/sun-1.5/bin/java -h
Usage: java [-options] class [args...]
...

(Program output help message correctly.)

#  /usr/pkg/java/sun-1.5/bin/java -version

(Program sleep here without any message and do not exit.)


#  /usr/pkg/java/sun-1.5/bin/java -jar xxx.jar

(Program sleep here without any message and do not exit.)


Anyone can tell me why or who can run sun-jdk15 correctly on
netbsd4-amd6?

Thanks.