Java Array Null Pointer Exception

Question

What potential error can occur when running the initializeNames method and why?
 
```java
public class ObjectArrayExample {
    public static void initializeNames(String[] names) {
        for (int i = 0; i < names.length; i++) {
            names[i].toUpperCase();
        }
    }
}
```

Accepted Answer

It may throw a NullPointerException because the elements of the 'names' array are null by default.

Answer

There is no error; the method works as intended for object arrays.

Answer

It may lead to an ArrayIndexOutOfBoundsException due to improper loop boundaries.

Answer

It incorrectly converts strings to uppercase by not assigning them back to the array.

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