Calling AndroidJni static method with string parameter

I am trying to call a Java static function in Qt C++ class using QAndroidJniObject with a string parameter.

This is my Java class having function which i am calling

        public class StatusBar{

        public static void setStatusBarBackgroundColor(Activity activity,String colorPref) {

// My code


         }  
        }

I am calling this function from C++ as

void ECApplicationInfo::changeStatusBarColor(QString color)
{
  QAndroidJniObject::callStaticMethod<void>( 
                  "com/ezeecube/ezeesync/StatusBar",
                  "setStatusBarBackgroundColor",
                  "(Landroid/app/Activity;)V",
                   activity,color);
}

I am getting the following error error: cannot pass objects of non-trivially-copyable type 'class QString' through '...' activity,color);

How can i get rid of this error