Adding Elements To Existing JList Under Java 7

I know there was a change in the later versions of Java where the C++ equivalent of a <template type> was added. Unfortunately the change has 'broken' my older code. If I have a JList and I want to add elements to it then now I should specify the type e.g., the list will store Strings. When I do this and then add data to the list (or actually the list model) the code is ''fixed". However if after adding those new elements to the list I later need to add more elements, which isn't unreasonable for a list...to have elements added dynamically at run time then I again get the same compiler error message that I haven't correctly specified the type:
 
// Error message during compilation
Note: Driver.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
 
// My code
 
// Problem here: I try to add new elements to the list. It's the very last line of the method that results in the error. I tried various things such as:

// model.addElement(<String> s);
// but   so far nothing has worked. How do I add new elements to the list (model)?   
public static void m2(JList <String> list)
    {
    String s;
    int i;
    String [] array = new String[10];

[Code] ....
 
// Code is OK: Create the array of strings to add to constructor of the JList

public static String[]  m1(){    String s;
    int i;
    String [] array = new String[10];
    for (i = 0; i < 5; i++)
    array[i] = i + "*";    return(array);

[Code] ....

// The change I had to make when compiling under the newer version of Java to indicate that the list would store strings
 
   // Things are okay here now but then when I try to add new elements to the model via method 'm2' that's where I get the compiler error