hg: jdk/client: 8192888: AllSwingComponentsBaselineTest fails with NullPointerException for NimbusLookAndFeel

[prasanta.sadhukhan at oracle.com]

Changeset: e202d04f4973
Author:    psadhukhan
Date:      2018-10-25 13:07 +0530
URL:       http://hg.openjdk.java.net/jdk/client/rev/e202d04f4973

8192888: AllSwingComponentsBaselineTest fails with NullPointerException for NimbusLookAndFeel
Reviewed-by: serb

! src/java.desktop/share/classes/javax/swing/plaf/synth/SynthButtonUI.java
+ test/jdk/javax/swing/plaf/nimbus/AllSwingComponentsBaselineTest.java