RFR: 8284888 : [macos] javax/swing/JInternalFrame/8146321/JInternalFrameIconTest.java failed with "NimbusLookAndFeel] : ERROR: icon and imageIcon not same."

[Sergey Bylokhov]

On Mon, 25 Apr 2022 09:37:10 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> Test used to fail in specific CI macos M1 system owing to miniscule color difference 
> 
> 
> x 0 y 0 red1 171 red2 171 green1 174 green2 175 blue1 184 blue2 184
> x 0 y 1 red1 172 red2 173 green1 177 green2 177 blue1 185 blue2 185
> x 0 y 2 red1 173 red2 174 green1 177 green2 178 blue1 187 blue2 187
> x 0 y 6 red1 0 red2 0 green1 1 green2 0 blue1 0 blue2 0
> x 0 y 15 red1 1 red2 0 green1 0 green2 0 blue1 0 blue2 0
> 
> 
> SInce we already have color-tolerance check present, there is no need of exact color value check.
> Also, made the frame undecorated and remove unneeded library being built. 
> Several iterations of the test passed in the same system (where it used to fail 4/10) along with other platforms (link in JBS)

BTW did you have a chance to check why to images are not the same? Is it a problem in the robot or in the rendering? Can it be related to upscaling/downscaling?

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PR: https://git.openjdk.java.net/jdk/pull/8380