shadows/framework/src/main/java/org/robolectric/shadows/ShadowImageDecoder.java
@Implementation
  protected static ImageDecoder nCreate(long asset, Source source) throws IOException {
    return ImageDecoder_nCreateAsset(asset, source);
  }
@Implementation
  protected static ImageDecoder nCreate(long asset, Source source) throws IOException {
    return ImageDecoder_nCreateAsset(asset, source);
  }
native method implementations...