@Before
 public void setUp() throws Exception {
   final ImageBuilderConfig imageBuilderConfig = mock(ImageBuilderConfig.class);
   imageBuilder = mock(AbstractImageIOImageBuilder.class, new CallsRealMethods());
   imageWriter = mock(ImageWriter.class);
   when(imageBuilder.getImageBuilderConfig()).thenReturn(imageBuilderConfig);
   when(imageBuilderConfig.getDefaultMimeType()).thenReturn(SOME_IMAGE_DEFAULT_MIME_TYPE);
   mockStatic(ImageIO.class);
 }