What will happen if the following program is run?

public class Test {
public static void main (String[] args) {
Test c = new Test();
c. m1();
}

public void m1() {
m2();
}

public void m2() {
String s = null;
System. out. println(s. toUpperCase());
}
}

1) A NullPointerException will be generated by method m2() and will stop in m2().
2) A NullPointerException will be thrown by method m2() and caught by method m1().
3) A NullPointerException will be thrown by method m2() and caught by main().
4) A NullPointerException will be thrown by method m2() and it will crash the program.