How to change Optional field(Java 8 API) into Java 7 -

i have application taken github in java 8 api, namely optional keyword, used. environment run app setup jdk_7. hence, have 0 experience java 8 api, can give alternative code block of following sample code:

public final static optional<string> reversegeocodefromlatlong(final double latitude, final double longitude) {     final stringbuilder bingmapsurl = new stringbuilder();     bingmapsurl             .append(bing_maps_url_start)             .append(latitude)             .append(",")             .append(longitude)             .append(bing_maps_url_middle_json)             .append(constants.bing_maps_api_key_value);     logger.debug("bingmapsurl==>{}", bingmapsurl.tostring());      httpurlconnection httpurlconnection;     inputstream inputstream = null;     try {         final url url = new url(bingmapsurl.tostring());         httpurlconnection = (httpurlconnection)url.openconnection();          if(httpurlconnection.http_ok == httpurlconnection.getresponsecode()){             inputstream = httpurlconnection.getinputstream();             return getstatefromjsonresponse(inputstream);         }     } catch (final throwable throwable) {         logger.error(throwable.getmessage(), throwable);         throwable.printstacktrace();     } finally{         if(null != inputstream) {             try {                 inputstream.close();             } catch (final ioexception ioexception) {                 logger.error(ioexception.getmessage(), ioexception);                 ioexception.printstacktrace();             }         }         httpurlconnection = null;     }     return optional.absent(); } 

the purpose of optional pretty force not forget null checks, replace return optional.absent() return null , make getstatefromjsonresponse return string instead of , optional<string>. don't forget check nulls in code, won't forced make checks.