RFR: 6176679: Application freezes when copying an animated gif image to the system clipboard [v14]

[Dmitry Markov]

On Thu, 4 May 2023 17:36:33 GMT, Rajat Mahajan <rmahajan at openjdk.org> wrote:

>> **Problem:**
>> 
>> On pressing the Copy button we keep waiting in AWT-EventQueue thread in reconstruct() function as we detect that we have missing information for the animated image since we are copying single frame at a time.
>> Due to this infinite wait the application freezes.
>> 
>> **Proposed Fix:**
>> 
>> There are conditions in the reconstruct() function that avoid entering the wait() code if we have some error reading the image , etc. So, I added the condition to avoid entering the wait() code if we are copying single frame at a time. This sounded logical to me since if we have incomplete information(single frame) about the animated image we shouldn’t keep waiting, as it leads to infinite wait. 
>> After this change I see the GIF image being correctly copied and animated.
>> 
>> 
>> **Testing:**
>> 
>> Added a test for this (bug6176679.java) and tested locally on my Windows machine and on mach5.
>
> Rajat Mahajan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   code cleanup

Marked as reviewed by dmarkov (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/13414#pullrequestreview-1414476234