Throw on illegal arguments to ArrayUtils.equals(a1, a2, len)

Specifically, throw an explicit IllegalArgumentException if
'len' is negative, rather than falling over in some other
way further down the line.

Change-Id: If955de7ec1a15aa9aa8c42b6994b059e0cdffcee

parent 71b00177

core/java/com/android/internal/util/ArrayUtils.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -79,6 +79,10 @@ public class ArrayUtils
		* @return true if they're equal, false otherwise
		*/
		public static boolean equals(byte[] array1, byte[] array2, int length) {
		if (length < 0) {
		throw new IllegalArgumentException();
		}

		if (array1 == array2) {
		return true;
		}