FULL PRODUCT VERSION :
1.6.0_18

ADDITIONAL OS VERSION INFORMATION :
Windows XP SP3

A DESCRIPTION OF THE PROBLEM :
Exactly the same .JAR file, displays JProgressBar OK when run under JRE 1.6.0_17, but no bar fill is visible when the JRE is replaced by the JRE from JDK 1.6.0_18

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
install JDK 1.6.0_18 and run an JAR containing JProgressBar

ACTUAL -
JProgressBar is not filled, independent of L&F

ERROR MESSAGES/STACK TRACES THAT OCCUR :
no MSGs

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

    private javax.swing.JProgressBar jProgressBar1;
        jProgressBar1 = new javax.swing.JProgressBar();
                            jProgressBar1.setValue(progressOnQueue);

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
remove JRE 1.6.0_18 using Add / Remove program in WinXP
RTE level then falls back to JRE 1.6.0_17

Release Regression From : 6u17
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.