The focus spec contains the following statement on Focus Traversal Policy Providers:

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 When calculating the first or the last Component in FocusTraversalPolicy.getFirstComponent
or FocusTraversalPolicy.getLastComponent,

    * if obtained Component is a Container and a focus traversal policy provider, that Container's FocusTraversalPolicy is inquired for the default Component, and that default Component is returned as the result
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However for AWT and Swing policies, method "getLastComponent" returns the last component
of a provider, not default.

This should be corrected.