hg: jdk/client: 8157338: sanity/client/SwingSet/src/ButtonDemoScreenshotTest.java is unstable

[alexandre.iline at oracle.com]

Changeset: 3b6fc119b32b
Author:    shurailine
Date:      2017-11-15 09:31 -0800
URL:       http://hg.openjdk.java.net/jdk/client/rev/3b6fc119b32b

8157338: sanity/client/SwingSet/src/ButtonDemoScreenshotTest.java is unstable
Reviewed-by: serb

! test/jdk/ProblemList.txt
! test/jdk/sanity/client/SwingSet/src/ButtonDemoScreenshotTest.java