when you're in /home/opt/java/ejre1.6.0_10/bin, did you type just "java" or "./java" ? note the dot and the slash at the beginning.
unlike windows, linux shells usually don't have the current path in the PATH variable.

If I'm in /home/opt/java/ejre1.6.0_10/bin and type "./java" I get "permission denied" ? (And this happens as root )

The autocomplete works with java but only without "sudo gainroot".

There's got to be some silly mistake I've made, but I just can't seem to figure it out...

can someone try nav4all? this might enable turn-by-turn navigation on the n900

Sorry I thought NinjaVideo.net had a java applet that you need to launch first in order to watch the streaming content on there????

@Xizor - Did you download the archive onto a Windows PC, expand it, then copy it across? If so, you may have lost permissions...

Type "ls -al /home/opt/java/ejre1.6.0_10/bin" into an xterm

On the left-hand side, you should see a column of permission data ("r", "w", "d" etc) ... the files should all have "-rwxr-xr-x" for their permissions.

ah, of course.

because you extracted it under windows and copied it to MyDocs first, the executable flags were lost. MyDocs is a vfat partition and doesn't support executable flags.

my suggestion to just copy the extracted content over wasn't so good after all.

you better delete the folder ejre1.6.0_10 (run "rm -rf ejre1.6.0_10" as root when in the directory /home/opt/java) and do this instead:

copy the .tar.gz (or .tgz, haven't d/l it yet) on the n900, then
now every file should have their proper flags and permissions

the changes in /etc/profile and the symlink won't be affected if you just delete the folder btw, so you don't have to do that again

Thank you both SubCore and Dak for the help! Now it's working.

Although I don't seem to be able to run even the simplest Swing- app => The ever annoying HeadlessException appears.

Dak, could you post the sample Java code for the Java Swing app you used for testing this rte?

Thanks for the instructions, Dak!

Just a note, the N900 has tar with gzip on it. So you can "tar xzvf" on your device without a problem. It avoids the permissions problems of the other methods.

Also /home/user/opt is also just /opt so you can shorten your path a bit.

Is there a specific reason why you choose /usr/local/bin for your symlink, instead of /usr/bin? Wouldn't it be easier to just add it to /usr/bin?

I tend to leave /usr/bin for "system" kinda stuff, and put all my personal meddling into /usr/local/bin

It's just the way I like to keep my hackery separate, that's all.

Wow.

The headful Java works amazingly well.

I tried the Java 2D demo, and it worked at a reasonable speed! Not as fast as my desktop, but I didn't say, "oh man, this is slow" or anything...

If Sun will let N900 owners use this without trial limitations, then we really do have a viable Java SE for the N900.

Now to try Opera Mini via MicroEmulator

(EDIT: Using this method)