private List<ImageInfo> getPendingConversionImages() {
   List<ImageInfo> pendingImages = null;
   try (final TransactionResource db = Entities.transactionFor(ImageInfo.class)) {
     pendingImages =
         Entities.query(Images.exampleWithImageState(ImageMetadata.State.pending_conversion));
   }
   return pendingImages;
 }
 private List<ImageInfo> getDeregisteredCleanupImages() {
   List<ImageInfo> images = null;
   try (final TransactionResource db = Entities.transactionFor(ImageInfo.class)) {
     images =
         Entities.query(Images.exampleWithImageState(ImageMetadata.State.deregistered_cleanup));
   }
   return images;
 }