Currently most of the built-in standard javax.imageio plugins throw an IOException from
ImageReaderSpi.canDecodeInput(Object) if it is an ImageInputStream and the available bytes
are fewer than the plugin needs to identify the image type.

It has been proposed that in this case they should return false instead as a matter of
quality of implementation.

See discussion thread here : https://mail.openjdk.java.net/pipermail/client-libs-dev/2022-May/004428.html