The 3.5beta version of NB generates wrong code for an 
action listener:

try {
    panelAlarmFiltering.addActionListener(new 
java.awt.event.ActionListener() {
        public void actionPerformed
(java.awt.event.ActionEvent evt) {
            panelAlarmFilteringActionPerformed(evt);
        }
    }} catch (java.util.TooManyListenersException e1) {
        e1.printStackTrace();
    }
);

The closing brace of addActionListener ");" and the 
closing curly brace of the catch statement are swapped.

With NB 3.4.1 I get:

try {
    panelAlarmFiltering.addActionListener(new 
java.awt.event.ActionListener() {
        public void actionPerformed
(java.awt.event.ActionEvent evt) {
            panelAlarmFilteringActionPerformed(evt);
        }
    });
} catch (java.util.TooManyListenersException e1) {
    e1.printStackTrace();
}