Unable to scroll the tabs using ScrollableTabButtons of inner JTabbedPane, in nested Tab case, when the outer tab pane is set to WRAP_TAB_LAYOUT.

If the outer tab pane is set to SCROLL_TAB_LAYOUT, the tabs are getting scrolled.

Find attached test case with the bug report.

To Reproduce the bug :

1) Compile and run the attached Java File.
2) Click on enabled scroll button of inner tab. You will see that it is not scrolling the tabs.