java - Is there a way to Parse NULL value to XMLGregorian Date format? -

i getting response of capital (null) external system need convert xmlgregorian date format & set xmlgregorian object. this? following code snippet trying parse with:

public static xmlgregoriancalendar toxmlgregoriancalendarwithtimezone(string date)   throws parseexception, datatypeconfigurationexception {       string format = "dd/mm/yyyy hh:mm:ss z";     gregoriancalendar cal = new gregoriancalendar();       simpledateformat formatter = new simpledateformat(format);       formatter.settimezone(cal.gettimezone());       cal.settime(formatter.parse(date));       xmlgregoriancalendar calendar = datatypefactory.newinstance().newxmlgregoriancalendar(cal.get(calendar.year),                cal.get(calendar.month) + 1, cal.get(calendar.day_of_month),   cal.get(calendar.hour_of_day),             cal.get(calendar.minute), cal.get(calendar.second),   datatypeconstants.field_undefined,             cal.get(calendar.zone_offset));           return calendar;   }   

my soapui request payload:

  <soapenv:header/>    <soapenv:body>       <usagehis>          <versionid>1</versionid>          <deviceid>1234</deviceid>          <startdateandtime>2016-09-09 10:10:10</startdateandtime>          <enddateandtime>2016-09-09 10:10:10</enddateandtime>          <startrange>1</startrange>          <endrange>12</endrange>          <transactiontype>cdr</transactiontype>       </usagehis>    </soapenv:body> 

my soapui response:

`

<env:body>       <usagehisresponse>             <status>                <statuscode>success</statuscode>                <errorcode>null</errorcode>                <errordescription>null</errordescription>                <totalnoofrecords>1</totalnoofrecords>             </status>  records>                <cdr>                   <starttime>09/09/2016 00:00:00 cdt</starttime>                   <downloadvolume>20</downloadvolume>                   <uploadvolume>10</uploadvolume>                   <uservolume>0</uservolume>                   <devicevolume>0</devicevolume>                </cdr>             </records>       <usagehisresponse>    </env:body> 

`

something can solve problem:

if (tobeparsed.equals("null")) {     date = null;     } else {     // try parse tobeparsed     date = .... }