The strings used in the "Next" and "Previous" Hyperlink's in DefaultPaginationBehavior.java show up as the untranslated character entities: "»" and "«" (see the attached image).
This is because the Hyperlink's do not use the "asHTML" parameter, and so are not treated as such.
screen grab
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I don't see where I would attach the patch for this bug, but here's a description of the simple fix:
On line 113 of DefaultPaginationBehavior, change
Hyperlink previousPageLink = new Hyperlink(previousPageText, "previousPage");
to
Hyperlink previousPageLink = new Hyperlink(previousPageText, true, "previousPage");
and on line 169, change
Hyperlink nextPageLink = new Hyperlink(nextPageText, "nextPage");
to
Hyperlink nextPageLink = new Hyperlink(nextPageText, true, "nextPage");