Getting this NPE sometimes when calling PixelReader's getPixelFormat. It is not documented to throw this exception.

java.lang.NullPointerException
at com.sun.javafx.image.PixelUtils.getGetter(PixelUtils.java:120)
at com.sun.prism.Image$Accessor.<init>(Image.java:640)
at com.sun.prism.Image$ByteAccess.<init>(Image.java:735)
at com.sun.prism.Image$UnsupportedAccess.<init>(Image.java:871)
at com.sun.prism.Image$UnsupportedAccess.<init>(Image.java:869)
at com.sun.prism.Image.getPixelAccessor(Image.java:518)
at com.sun.prism.Image.getPlatformPixelFormat(Image.java:538)
at javafx.scene.image.Image$2.getPixelFormat(Image.java:1104)
at hs.mediasystem.util.ImageCache.getApproximateImageSize(ImageCache.java:81)
at hs.mediasystem.util.ImageCache.access$0(ImageCache.java:80)
at hs.mediasystem.util.ImageCache$ImageWeakReference.<init>(ImageCache.java:159)
at hs.mediasystem.util.ImageCache.store(ImageCache.java:70)
at hs.mediasystem.util.ImageCache.loadImage(ImageCache.java:42)
at hs.mediasystem.beans.AsyncImageProperty$2.run(AsyncImageProperty.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)