scala (www.scala-lang.org) out of the box running with sun embedded java 1.6.0_10
after installing embedded java from sun (headfull or use the link posted earlier), scala 2.7.7 final, just untar the scala in /home/opt and make a .profile int /home/user that sets the PATH variable to java and scala, and also sets JAVA_HOME and SCALA_HOME.
The good news is:allthough Sun embedded java does not include a javac compiler, the scalac compiler works, as it runs in the JVM itself!
N900 is really a nice Phone and linux machine!

can some write a step by step how to get this installed please because i'm not sure what i'm meant to do first.

also does opera mini work and load java applets on sites?

The way I understand it is that, first you need to install a java virtual machine (aka a java runtime envrironment - jre), from this link here:

https://cds.sun.com/is-bin/INTERSHOP...-CDS_Developer

HOWEVER I am unsure which of the two HEADFUL versions we need to download! Could someone please clarify this (softfloat or hardfloat?)

THEN we need to install microemulator which can run Java apps that are supposed to run on mobile devices (micro emulator is actually a java application).

THEN we use micro emulator to run apps like opera mini, google maps etc.

EDIT:

I have got it working with OPERA mini!!!! First download Java SE from the link above (ARMv6 HEADFUL version), then foillow DAK's instructions on page 2 of this thread to get java working.

Now download micro emulator, it's a small zip file. Extract it and then cd into it using the command line and run java -jar microemulator.jar.

This will open up a window where you can find .jar files like opera mini and run it!

when i type /opera.sh it says its missing but its in folder, how do i launch it?

excuse it, i realised i didnt do

"./"opera.sh

went to a site and says i need java runtime :/ i thought this inludeded it lol

opera mini 5 works great. but i couldnt get any java games to run

What errors are you getting Ronaldo???

Run the .JAR file rather than the .jad file. I got worms working, but doesn't accept input from the N900 keyboard.

Has anyone tried the OpenJDK for Maemo?

http://wiki.maemo.org/OpenJDK_6.0_0_...abs%29_on_N900

How hard would it be to port sun-java6-plugin and sun-java6-jre from the Ubuntu repositories?

In Sweden we got an electronic legitimation used for signing on the internet that need those packages. It does not work with OpenJDK or IceTea. The legitimation is good in contact with the authorities (faster handling). Would be great if it worked on the N900.

Impossible unfortunately. They are the closed source versions. But I would imagine the Sun embedded JRE is very similar and might have the right certs. But again there is no browser that works with the Java plugin, and I assume you are wanting to use some applet.