public void closeButton_actionPerformed(ActionEvent e) { if (!checkValidFrom() || !checkValidUntil()) { return; } this.validFromResult = (validFrom.isSet() && validFrom.isValidInput() ? validFrom.getTimeStamp() : 0); this.invalidFromResult = (validUntil.isSet() && validUntil.isValidInput() ? validUntil.getTimeStamp() + 1000 : Long.MAX_VALUE); super.closeButton_actionPerformed(e); }