code: protected final void checkMinValue(int minVal) throws BOSHException {
          int intVal = getValue();
          if (intVal < minVal) {
              throw(new BOSHException(
                      "Illegal attribute value '" + intVal + "' provided.  "
                      + "Must be >= " + minVal));
          }
      }
docs: Utility method intended to be called by concrete implementation
  classes from within the {@code check()} method when the concrete
  class needs to ensure that the integer value does not drop below
  the specified minimum value.
  
  @param minVal minimum value to allow
  @throws BOSHException if the integer value is below the specific
  minimum