Reduced Warnings by adding Type Arguments and removing unused imports

import android.os.RemoteException;

import android.os.ServiceManager;

import android.util.DisplayMetrics;

import android.util.Log;

import android.util.TypedValue;

import android.widget.RemoteViews;

     */

    public static final String META_DATA_APPWIDGET_OLD_NAME = "android.appwidget.oldName";

    static WeakHashMap<Context, WeakReference<AppWidgetManager>> sManagerCache = new WeakHashMap();

    static WeakHashMap<Context, WeakReference<AppWidgetManager>> sManagerCache =

        new WeakHashMap<Context, WeakReference<AppWidgetManager>>();

    static IAppWidgetService sService;

    Context mContext;

            }

            if (result == null) {

                result = new AppWidgetManager(context);

                sManagerCache.put(context, new WeakReference(result));

                sManagerCache.put(context, new WeakReference<AppWidgetManager>(result));

            }

            return result;

        }