On Fri, 7 Jan 2022 00:01:24 GMT, Kevin Rushforth <[email protected]> wrote:
>> Michael Strauß has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Added test for image format without signature
>
> modules/javafx.graphics/src/main/java/com/sun/javafx/iio/ImageStorage.java
> line 490:
>
>> 488: if (stream.read(header) <= 0) {
>> 489: return null;
>> 490: }
>
> What was the reason for this change? The former would work even if the stream
> returned less data that the size of the header in a single read, whereas the
> latter would fail.
Well, almost. `ImageTools.readFully` throws `EOFException` if the input stream
is empty. That doesn't make a lot of sense in the context of
`getLoaderBySignature`, since the method should return `null` if the input
stream doesn't contain enough data to detect a signature (and it doesn't seem
useful to me to make a distinction between "not enough" bytes and zero bytes).
I've opted to retain the use of `ImageTools.readFully`, but catch the
`EOFException` and return `null` instead.
-------------
PR: https://git.openjdk.java.net/jfx/pull/676
