Go to etc folder in Netbeans home –> open netbeans.conf
file and add
on netbeans_default_options
following line:
-J-Dfile.encoding=UTF-8
Restart Netbeans and it should be in UTF-8
To check go to help –> about and check System: Windows Vista version 6.0 running on x86; UTF-8; nl_NL (nb)