The DefaultPermissionPolicy and AnyUnblockedGrantPermissionPolicy permission policies appear both in uPortal 2 (for 2.5.4, 2.6) and in the next-gen GaP project.
IPermissionPolicy API
TODO: Discuss the API or link to JavaDoc.
How you configure your default permission policy
Default In uPortal 2, the default permission policy is configured in portal.properties.
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