Fatal Exception: java.lang.NullPointerException

[TonyHaddad91]

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.isRecycled()' on a null object reference
at android.graphics.Canvas.throwIfCannotDraw(Canvas.java:1302)
at android.graphics.Canvas.drawBitmap(Canvas.java:1358)
at jp.wasabeef.blurry.internal.Blur.rs(Blur.java:60)
at jp.wasabeef.blurry.internal.BlurTask$1.run(BlurTask.java:60)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)

[Ariel4Android]

The same issue happened on some 3rd customized Android OS within my depolyed app.
I tried to modify code BlurTask.java, frome line 60 like this

` Context context = contextWeakRef.get();
if (context != null) {

      final BitmapDrawable bitmapDrawable =
              new BitmapDrawable(res, Blur.of(context, capture, factor));

      if (callback != null) {
        new Handler(Looper.getMainLooper()).post(new Runnable() {
          @Override public void run() {
            callback.done(bitmapDrawable);
          }
        });
      }
    }`