RFR: 7131823: bug in GIFImageReader [v3]

[Sergey Bylokhov]

On Wed, 27 Apr 2022 22:10:43 GMT, Dan Lutker <duke at openjdk.java.net> wrote:

>> …xception: Index 4096 out of bounds for length 4096
>> 
>> Adapted from https://github.com/openjdk/jfx/commit/7b7050c46299c0e6771ae02fbb5ceaf22104d3e4
>> 
>> # Testing done
>> Build locally on linux and ran jdk_imageio tests.
>
> Dan Lutker has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
> 
>   7131823: bug in GIFImageReader

The updated code now uses NULL_CODE, so it covers both issues from the JBS. But does anybody have an idea what was the problem fixed by the "NULL_CODE", was and how hard to create a test for it?

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PR: https://git.openjdk.java.net/jdk/pull/8371