<Swing Dev> [10] RFR JDK-8181421: 3 regtest fail on windows7 in Nimbus L&F

[Prasanta Sadhukhan]

Hi All,

Please review a subitem fix of JDK-7190554 
<https://bugs.openjdk.java.net/browse/JDK-7190554> where some closed 
regression test is failing with Nimbus L&F.

Issue was we were getting NPE
which is because a null style was used in SynthPanelUI to generate the 
SynthContext

java.lang.NullPointerException: You must supply a non-null component, 
region and style
     at 
java.desktop/javax.swing.plaf.synth.SynthContext.getContext(SynthContext.java:58)
     at 
java.desktop/javax.swing.plaf.synth.SynthContext.getContext(SynthContext.java:49)
     at 
java.desktop/javax.swing.plaf.synth.SynthPanelUI.getContext(SynthPanelUI.java:128)
     at 
java.desktop/javax.swing.plaf.synth.SynthPanelUI.updateStyle(SynthPanelUI.java:115)
     at 
java.desktop/javax.swing.plaf.synth.SynthPanelUI.installDefaults(SynthPanelUI.java:100)

Proposed fix is to generate a style before generating SynthContext 
because as per spec,
https://docs.oracle.com/javase/8/docs/api/index.html?javax/swing/plaf/synth/SynthContext.html
it should throw NPE||- if component, region or style is null.

Bug: https://bugs.openjdk.java.net/browse/JDK-8181421
webrev: http://cr.openjdk.java.net/~psadhukhan/8181421/webrev.00/

Regards
Prasanta
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/swing-dev/attachments/20170601/92c451fb/attachment.html>