Alternatively... should add(null, null) simply return null?

Or throw NullPointerException?

On Sat, Jan 16, 2010 at 4:39 AM,  <s...@apache.org> wrote:
> Author: sebb
> Date: Sat Jan 16 12:39:20 2010
> New Revision: 899929
>
> URL: http://svn.apache.org/viewvc?rev=899929&view=rev
> Log:
> LANG-571 ArrayUtils.add(T[] array[, offset], T element) can create unexpected 
> ClassCastException
>
> Modified:
>    
> commons/proper/lang/trunk/src/main/java/org/apache/commons/lang3/ArrayUtils.java
>    
> commons/proper/lang/trunk/src/test/java/org/apache/commons/lang3/ArrayUtilsAddTest.java
>    commons/proper/lang/trunk/xdocs/changes.xml
>
> Modified: 
> commons/proper/lang/trunk/src/main/java/org/apache/commons/lang3/ArrayUtils.java
> URL: 
> http://svn.apache.org/viewvc/commons/proper/lang/trunk/src/main/java/org/apache/commons/lang3/ArrayUtils.java?rev=899929&r1=899928&r2=899929&view=diff
> ==============================================================================
> --- 
> commons/proper/lang/trunk/src/main/java/org/apache/commons/lang3/ArrayUtils.java
>  (original)
> +++ 
> commons/proper/lang/trunk/src/main/java/org/apache/commons/lang3/ArrayUtils.java
>  Sat Jan 16 12:39:20 2010
> @@ -3280,13 +3280,21 @@
>      * @param element  the object to add, may be <code>null</code>
>      * @return A new array containing the existing elements plus the new 
> element
>      * The returned array type will be that of the input array (unless null),
> -     * in which case it will have the same type as the element (unless that 
> is also null)
> -     * in which case the returned type will be Object[].
> +     * in which case it will have the same type as the element.
> +     * If both are null, an IllegalArgumentException is thrown
>      * @since 2.1
> +     * @throws IllegalArgumentException if both arguments are null
>      */

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