android - Why does my service calls its onCreate() itself while running? -

i have service in android application stop when quitting application.

public class myservice extends service {      public myservice() {     }      @override     public int onstartcommand(intent intent, int flags, int startid) {         try {             if(intent != null){                 //......             }         } catch (throwable e) {         }         return start_sticky;     }      @override     public void ondestroy() {         super.ondestroy();     }      @override     public void oncreate() {         super.oncreate();         //......     }      @override     public ibinder onbind(intent intent) {         return null;     }   } 

this service calls oncreate() method while running.when checking state of service running functionalities not work.i stuck on many hours.what problem here?i tried onlowmemory() in service.but not result.

if return start_sticky in onstartcommand(), service gets created again if killed system (probably on low memory condition). same thing must have happened in case , oncreate() got called.