On Wed, 21 May 2025 03:17:34 GMT, Prasanta Sadhukhan <psadhuk...@openjdk.org> 
wrote:

> Graphics copyArea overflow check bails out of copying pixels if there is 
> overflow.
> The spec says ""If a portion of the source rectangle lies outside the bounds 
> of the component, or is obscured by another window or component, {@code 
> copyArea} *will be unable to copy* the associated pixels"
> 
> which suggests that we should always copy the parts inside the bounds and 
> never the parts outside the bounds
> but it seems currently, in the case of overflow it no longer copies any 
> pixels, including the parts that are inside. 
> So, the fix clips the copyarea region to clip bounds so it will only affect 
> pixels within the valid bounds, and any pixels outside will be ignored.

This pull request has now been integrated.

Changeset: 64503c78
Author:    Prasanta Sadhukhan <psadhuk...@openjdk.org>
URL:       
https://git.openjdk.org/jdk/commit/64503c784bbddc638ce0098f5c6ef0cb81cbf938
Stats:     74 lines in 2 files changed: 62 ins; 5 del; 7 mod

8357299: Graphics copyArea doesn't copy any pixels when there is overflow

Reviewed-by: achung, kizune, prr

-------------

PR: https://git.openjdk.org/jdk/pull/25340

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