Use Arrays.hashCode() in ByteArrayResource.hashCode()

spring-core/src/main/java/org/springframework/core/io/ByteArrayResource.java

@@ -126,7 +126,7 @@ public class ByteArrayResource extends AbstractResource {
 	 */
 	@Override
 	public int hashCode() {
-		return (byte[].class.hashCode() * 29 * this.byteArray.length);
+		return Arrays.hashCode(byteArray);
 	}
 
 }