Java Stack Installation on existing ABAP stack.

Hi Expert,

I am going to install JAVA stack on existing ABAP stack ( ECC 6.0 ).

However Before going to actual implementation there are some doubts .

I hope that your guidance help me lot.

1) It is possible to do same?

2) Which Java Netweaver version I will prefer?

3) Memeory Requirement?

4) Is there need to increase h/w capacity If yes then how much extend?

5) Useful Link for same activity / Installation Guide?

6) Other useful and mandatory things need to be done ?

Thanks In advance...........!!!

Regards,
Parag.