Java Utililty Methods Array Null Element

boolean isNull(final Object[] array)
Checks if an array is null or empty or all its elements are null.

if (array == null || array.length == 0) {
 return true;
for (int i = 0; i < array.length; i++) {
 if (array[i] != null) {
 return false;
return true;

boolean isNull(Object[] objects)
is Null

if (objects != null && objects.length > 0) {
 for (Object object : objects) {
 if (object instanceof String) {
 if ((String) object == null || "".equals((String) object)
 || "NULL".equals(((String) object).toUpperCase())) {
 return true;
 } else if (object instanceof Integer) {
...

boolean isNull(T array[])
Array is empty

return array == null || array.length == 0;

boolean isNullArray(String[] array)
is Null Array

return (array == null || array.length == 0 || (array.length == 1 && "".equals(array[0])));