Programming

You should have it print the name of the port, too. Perhaps something strange has ended up in the port list somehow, like a foreign TTY.

I had it print the name of the ports and the list is as expected (tty1a, tty1A, tty2a, tty2A). I also changed the owner and group of every file and directory associated with the JRE. I still get the same issue.

It doesn't appear that there is a fix for this issue.
I would have tried an updated Java Communications API, but 2.0Aa is the only version available. There was talk of a 3.0 version, but there is nowhere to download it from.

Maybe it isn't lying. Are any of these terminals being used for logins? As in, if you hooked up a serial terminal to them, would you get a login screen? If so, they will be busy.

No. Logins are disabled for these ports.

---------- Post updated at 01:32 PM ---------- Previous update was at 11:25 AM ----------

I tried setting java to run asroot, but this did not work.
Any idea how I can make java_vm run as root? When I set it up according to the instructions, it's still running as my user.
Here are the steps I took:
copy java_vm from jre/bin to /tcb/files/rootcmds
edit /etc/auth/system/authorize to include java_vm for the root subsystem authorization.
Using User Manager, grant my user the root authorization.
Restart and log in as me.
Start app.
run "ps -ef|grep java"
this shows java_vm running as me.

Any help would be greatly appreciated.

It runs as you because you're running it as you.

You really shouldn't be forcing java to run as root. If you have permissions to open the file, and java is running as you, java has permissions to open the file.

Do you have lsof? Try and track down what has the file open or locked. I'm not convinced the error message is a lie.

The problem is that I am not sure what's causing the issue. I can run my app fine when I am logged in as root but not when I am logged in as me.
I was really just running this as a test to see where the permissions issue is.
Apparently, I don't have access to something.

lsof returns nothing for /dev/tty1a

FYI. I did a fresh install of SCO and installed nothing but java. Still got the same error.

Can you run system commands from java? Try running 'groups' from java to see what groups it has available. Compare that to the output when you run 'groups' from shell.