REGRESSION:ArrayIndexOutOfBoundsException exception throws

J2SE Version (please include all output from java -version flag):
 java version "1.6.0-ea"
 Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b41)
 Java HotSpot(TM) Client VM (build 1.6.0-ea-b41, mixed mode)

Does this problem occur on J2SE 1.3, 1.4.x or 1.5? Yes / No (pick one)
 No.

Operating System Configuration Information (be specific):
  win_xp, solaris sparc as well.

Bug Description:
   ArrayIndexOutOfBoundsException exception throws when run the following
   test program. test program works fine with Tiger and early mustang release.
   This regression was introduced in mustang build 34; it might be related
   to the bug fix for bug#5076755.

Steps to Reproduce (be specific):
   Run TabbedPan program and you will see the following exception:

   java TabbedPane
java.lang.ArrayIndexOutOfBoundsException: -1
        at javax.swing.plaf.basic.BasicTabbedPaneUI$TabbedPaneScrollLayout.layoutContainer(BasicTabbedPaneUI.java:3003)
        at java.awt.Container.layout(Container.java:1402)
        at java.awt.Container.doLayout(Container.java:1391)
        at java.awt.Container.validateTree(Container.java:1474)
        at java.awt.Container.validateTree(Container.java:1481)
        at java.awt.Container.validateTree(Container.java:1481)
        at java.awt.Container.validateTree(Container.java:1481)
        at java.awt.Container.validateTree(Container.java:1481)
        at java.awt.Container.validate(Container.java:1449)
        at java.awt.Window.show(Window.java:552)
        at java.awt.Component.show(Component.java:1406)
        at java.awt.Component.setVisible(Component.java:1359)
        at TabbedPane.main(TabbedPane.java:45)

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