Just for you information.

The download link for Netbeans on Linux lead to a non-existing page (Error Page 404)
http://download.netbeans.org/netbeans/8....p-linux.sh

Should be
https://netbeans.org/downloads/start.htm...p&bits=x64

or even more easy
sudo apt-get install netbeans

Thank you very much
I will update this.