code: public static boolean equalsOne(Object _obj, Object... _arrObj) {
         if (_obj == null || _arrObj == null) {
             return false;
         }
         for (Object o : _arrObj) {
             if (o != null && _obj.equals(o)) {
                 return true;
             }
         }
         return false;
     }
docs: Returns true if the specified object equals at least one of the specified other objects.
  @param _obj object
  @param _arrObj array of objects to compare to
  @return true if equal, false otherwise or if either parameter is null