/src/main/java/org/htmlunit/html/HtmlMonthInput.java
final YearMonth dateValue = YearMonth.parse ( getRawValue ( ) , FORMATTER_ ) ; final YearMonth minDate = YearMonth.parse ( getMin ( ) , FORMATTER_ ) ;
public boolean isValid() { return super.isValid() && isMaxValid() && isMinValid(); } private boolean isMinValid() { if (hasFeature(HTMLINPUT_TYPE_MONTH_SUPPORTED) && !getMin().isEmpty()) { try { <extra_id_0> return minDate.equals(dateValue) || minDate.isBefore(dateValue); } catch (final DateTimeParseException e) { } } return true;