--- a/jdk/src/share/classes/javax/swing/plaf/basic/BasicProgressBarUI.java	Fri Apr 17 16:28:02 2009 +0400
+++ b/jdk/src/share/classes/javax/swing/plaf/basic/BasicProgressBarUI.java	Sat Apr 25 21:17:50 2009 +0400
@@ -158,6 +158,7 @@
                                          "ProgressBar.foreground",
                                          "ProgressBar.font");
         cellLength = UIManager.getInt("ProgressBar.cellLength");
+        if (cellLength == 0) cellLength = 1;
         cellSpacing = UIManager.getInt("ProgressBar.cellSpacing");
         selectionForeground = UIManager.getColor("ProgressBar.selectionForeground");
         selectionBackground = UIManager.getColor("ProgressBar.selectionBackground");