<Swing Dev> [11] RFR JDK-7190978:javax/swing/JComponent/7154030/bug7154030.java fails on windows, mac

[Prasanta Sadhukhan]

Hi All,

It seems the test fails intermittently on windows as I can see 1 or 2 
failures out of 15 iterations citing either "failing to hide opaque 
button" or "failing to hide non-opaque button".
  It did not fail for me in linux and mac in 15 iterations.
I have increased the delay before the robot screen capture when the 
button is being hidden which causes it to pass on windows 7 on all 15 
iterations. It does not affect ubuntu 17.10  and mac 10.13.3 where it 
still passes.

webrev: cr.openjdk.java.net/~psadhukhan/7190978/webrev.01/

Regards
Prasanta
On 2/22/2018 9:51 PM, Prasanta Sadhukhan wrote:
> Hi All,
>
> Please review a testbug fix for an issue whereby it seen that it fails 
> citing "failing to hide opaque button".
> It is seen that the test compares the buffered image strictly 
> pixel-by-pixel and even if it differs by 1,2 pixels it fails which is 
> what was happening here.
> Proposed fix is to make it more lenient by allowing a tolerance of 
> 20pixels difference in the comparison of 2 bufferedimage.
> It is verified on windows.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-7190978
> webrev: http://cr.openjdk.java.net/~psadhukhan/7190978/webrev.00/
>
> Regards
> Prasanta