>javac HelloWorld.java
>
>UNRESOLVED EXTERNALS: accept (LDRERR 512)
>UNRESOLVED EXTERNALS: listen (LDRERR 512)
>UNRESOLVED EXTERNALS: recvfrom (LDRERR 512)
>UNRESOLVED EXTERNALS: connect (LDRERR 512)
>UNRESOLVED EXTERNALS: sendto (LDRERR 512)
>UNRESOLVED EXTERNALS: sfcntl (LDRERR 512)
Sounds like your system lacks libsocket.sl in /lib or /usr/lib.
If there is a LIBS.hp3000 shell script somewhere in the JAVA
account (supposedly in /JAVA/INSTALL), then you can run it from
inside the shell (logged on as MANAGER.SYS) to create various
of the .sl libraries from the respective .a files in /usr/lib
as well as /lib.
Hope this helps.
Lars.