Without diving into the specifics of each case there are multiple uses of finalize() in the ImageI/O API as follows :-

javax.imageio.spi.ServiceRegistry.finalize()

and uses on these input and output stream classes :
javax.imageio.stream.ImageInputStreamImpl.finalize(
and in sub-classes
javax.imageio.stream.FileImageInputStream.finalize()
javax.imageio.stream.FileCacheImageInputStream.finalize()
javax.imageio.stream.MemoryCacheImageInputStream.finalize()
and also
javax.imageio.stream.FileImageOutputStream.finalize()

We will need to devise replacement solutions for these