Robot.getPixelColor() does not call Toolkit.getDefaultToolkit().sync() before reading the pixel, unlike Robot.createScreenCapture() which has had this call since [JDK-6725214](https://bugs.openjdk.org/browse/JDK-6725214).
When a hardware-accelerated pipeline (OGL, D3D, Metal) is active, rendering may be buffered and not yet flushed to the screen when getPixelColor() reads the pixel. This causes it to return stale values typically the window background color instead of the rendered content. ------------- Commit messages: - 8378153: Robot.getPixelColor() may return stale pixels due to missing Toolkit.sync() Changes: https://git.openjdk.org/jdk/pull/29780/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29780&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378153 Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/29780.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29780/head:pull/29780 PR: https://git.openjdk.org/jdk/pull/29780
