Product Version: NetBeans IDE Dev (Build 20080423054047)
Java: 1.6.0_10-beta; Java HotSpot(TM) Client VM 11.0-b11
System: Linux version 2.6.22-14-generic running on i386; UTF-8; en_US (nb)

Comment on previous line is duplicated when hint is applied.

Steps to reproduce:
1) have a code:

public class HelloClass {
    
    public void neco() {
        System.out.println(""); //comment

        s =3;
    }

}

2) use hint to create local variable (it's reproducible with other hints as well)

-> method code is changed to:
    public void neco() {
        System.out.println(""); //comment

        //comment
        int s = 3;
    }