NoClassDefFoundError in ParseUtils

Question

I am using parse for push notification i am getting following error

   java.lang.NoClassDefFoundError: notifications.ParseUtils$1
        at notifications.ParseUtils.registerParse(ParseUtils.java:33)
        at com.techieweb.solutions.pickeronline.MyApplication.onCreate(MyApplication.java:20)
        at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1017)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4590)
        at android.app.ActivityThread.access$1400(ActivityThread.java:157)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:176)
        at android.app.ActivityThread.main(ActivityThread.java:5317)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:511)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
        at dalvik.system.NativeStart.main(Native Method)

I am using this for reference http://www.androidhive.info/2015/06/android-push-notifications-using-parse-com/

This is my ParseUtils.java class

  public class ParseUtils {

private static String TAG = ParseUtils.class.getSimpleName();

public static void verifyParseConfiguration(Context context) {
    if (TextUtils.isEmpty(AppConfig.PARSE_APPLICATION_ID) || TextUtils.isEmpty(AppConfig.PARSE_CLIENT_KEY)) {
        Toast.makeText(context, "Please configure your Parse Application ID and Client Key in AppConfig.java", Toast.LENGTH_LONG).show();
        ((Activity) context).finish();
    }
}

public static void registerParse(Context context) {
    // initializing parse library
    Parse.initialize(context, AppConfig.PARSE_APPLICATION_ID, AppConfig.PARSE_CLIENT_KEY);
    ParseInstallation.getCurrentInstallation().saveInBackground();
 //Shows error heree
    ParsePush.subscribeInBackground(AppConfig.PARSE_CHANNEL, new SaveCallback() {
        @Override
        public void done(ParseException e) {
            Log.e(TAG, "Successfully subscribed to Parse!");
        }
    });
}

public static void subscribeWithEmail(String email) {
    ParseInstallation installation = ParseInstallation.getCurrentInstallation();

    installation.put("email", email);

    installation.saveInBackground();

    Log.e(TAG, "Subscribed with email: " + email);
}
}

and this is MyApplication

    public class MyApplication extends Application {

private static MyApplication mInstance;

@Override
public void onCreate() {
    super.onCreate();
    mInstance = this;

    // register with parse
    ParseUtils.registerParse(this);
}


public static synchronized MyApplication getInstance() {
    return mInstance;
}
}

This is NotificationUtils class

public class NotificationUtils {

private String TAG = NotificationUtils.class.getSimpleName();

private Context mContext;

public NotificationUtils() {
}

public NotificationUtils(Context mContext) {
    this.mContext = mContext;
}

public void showNotificationMessage(String title, String message, Intent intent) {

    // Check for empty push message
    if (TextUtils.isEmpty(message))
        return;

    if (isAppIsInBackground(mContext)) {
        // notification icon
        int icon = R.mipmap.ic_launcher;

        int smallIcon = R.drawable.ic_push;

        int mNotificationId = AppConfig.NOTIFICATION_ID;

        PendingIntent resultPendingIntent =
                PendingIntent.getActivity(
                        mContext,
                        0,
                        intent,
                        PendingIntent.FLAG_CANCEL_CURRENT
                );

        NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                mContext);
        Notification notification = mBuilder.setSmallIcon(smallIcon).setTicker(title).setWhen(0)
                .setAutoCancel(true)
                .setContentTitle(title)
                .setStyle(inboxStyle)
                .setContentIntent(resultPendingIntent)
                .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
                .setLargeIcon(BitmapFactory.decodeResource(mContext.getResources(), icon))
                .setContentText(message)
                .build();

        NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(mNotificationId, notification);
    } else {
        intent.putExtra("title", title);
        intent.putExtra("message", message);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        mContext.startActivity(intent);
    }
}

/**
 * Method checks if the app is in background or not
 *
 * @param context
 * @return
 */
public static boolean isAppIsInBackground(Context context) {
    boolean isInBackground = true;
    ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT_WATCH) {
        List<ActivityManager.RunningAppProcessInfo> runningProcesses = am.getRunningAppProcesses();
        for (ActivityManager.RunningAppProcessInfo processInfo : runningProcesses) {
            if (processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
                for (String activeProcess : processInfo.pkgList) {
                    if (activeProcess.equals(context.getPackageName())) {
                        isInBackground = false;
                    }
                }
            }
        }
    } else {
        List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1);
        ComponentName componentInfo = taskInfo.get(0).topActivity;
        if (componentInfo.getPackageName().equals(context.getPackageName())) {
            isInBackground = false;
        }
    }

    return isInBackground;
}
}

Please help me.

Answer 1

Solved the error by removing

  ParsePush.subscribeInBackground(AppConfig.PARSE_CHANNEL, new SaveCallback() {
    @Override
    public void done(ParseException e) {
        Log.e(TAG, "Successfully subscribed to Parse!");
    }
});

and using only

  ParseInstallation.getCurrentInstallation().saveInBackground();

https://teamtreehouse.com/community/pushservicesetdefaultpushcallback-has-now-been-depreciated-what-can-be-used

Answer 2

NoClassDefFoundError is thrown when the definition of class in not available during runtime. This error also indicates that the definition of the class was found during the compilation of the application, but it is not available in the application’s classpath during runtime.

Your Logcat throws

 java.lang.NoClassDefFoundError: notifications.ParseUtils$1
        at notifications.ParseUtils.registerParse(ParseUtils.java:33)

Make sure, your NotificationUtils calling or not .