The aforementioned demo has 8 pages in total (provided that the default page size of 10 has not been changed) so if you go to the 8th page, the next and last page buttons should not be working nor crawled because the current page (8) is the last page available.
So, according to Google (Google Search Appliance: Administering Crawl > Advanced Topics
), links containing onclick='return false' won't be crawled at all.
Nevertheless, I contacted our developers and they told me they are going to introduce a property to enable the hyperlink buttons to render a sharp sign for the url instead of return false. This is needed to avoid any breaking changes.
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