FULL PRODUCT VERSION :
java version "1.6.0_10-ea"
Java(TM) SE Runtime Environment (build 1.6.0_10-ea-b10)
Java HotSpot(TM) Client VM (build 11.0-b09, mixed mode, sharing)


ADDITIONAL OS VERSION INFORMATION :
 customer Windows XP [Version 5.1.2600]


A DESCRIPTION OF THE PROBLEM :
With other JRE releases, the default look and feel (LAF) is set to "CrossPlatformLookAndFeel". See http://java.sun.com/docs/books/tutorial/uiswing/lookandfeel/plaf.html#available

I can confirm that the correct behaviour is to default to CrossPlatformLookAndFeel, as per JRE 1.7 (and earlier versions of JRE 1.6).

So, just confirming, defaulting to CrossPlatformLookAndFeel is the _correct_ behaviour. This is done by JRE 1.7 but JRE 1.6.0_10-ea-b10 defaults to SystemLookAndFeel for some reason.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run any Java application (or applet) which doesn't specifically set its own LAF. On JRE 1.6.0_10-ea it will display using the SystemLookAndFeel. On JRE 1.7 (or any other JVM version) it will display using CrossPlatformLookAndFeel.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
It should use the CrossPlatformLookAndFeel as per http://java.sun.com/docs/books/tutorial/uiswing/lookandfeel/plaf.html#available.
ACTUAL -
It renders with SystemLookAndFeel.

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Specify platform specific LAF in swing.properties: e.g.
swing.defaultlaf=javax.swing.plaf.metal.MetalLookAndFeel

Release Regression From : 6
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.
Posted Date : 2008-01-23 08:53:08.0