asp.net web api - parsing boolean value with Json -

i'm using json send objects android application web api application. when try send object contains boolean value value deserialized false if true in json ! here exemple :

public class myobject{     public boolean value1;     public string value2; } 

and have method object server :

public string postobject(string url, object obj) throws parseexception, ioexception {     defaulthttpclient client = new defaulthttpclient();     httppost httppost = new httppost(url);     stringentity stringentity = new stringentity(new gsonbuilder().setdateformat("yyyy-mm-dd't'hh:mm:ss").create().tojson(obj));     httppost.setentity(stringentity);     httppost.setheader("accept", "application/json");     httppost.setheader("content-type", "application/json");     httppost.setheader("accept-encoding", "gzip");     httpresponse httpresponse = client.execute(httppost);     httpentity httpentity = httpresponse.getentity();     string resp = entityutils.tostring(httpentity);     return resp; } 

and here i'm sending object server :

myobject obj = new myobject(); obj.value1 = true; obj.value2 = "testing"; jsonhttpclient jsonhttpclient = new jsonhttpclient(); string response = jsonhttpclient.postobject(myurl, obj); 

and here code server side :

[acceptverbs("post")] public string test(myobject obj) {     //obj.value1 = false !!! }