"Unable to get recent groups" error is thrown in the logs for Guest users with specific permission

Issue

• Liferay DXP 7.4 U92 starts up with the following error:
  

  ERROR [http-nio-8080-exec-2][RecentGroupManager:94] Unable to get recent groups
  java.lang.NullPointerException: null
  	at com.liferay.portal.security.permission.BasePermissionChecker.init(BasePermissionChecker.java:104) ~[portal-impl.jar:?]
  	at com.liferay.portal.security.permission.AdvancedPermissionChecker.init(AdvancedPermissionChecker.java:252) ~[portal-impl.jar:?]
  	at com.liferay.portal.security.permission.PermissionCheckerFactoryImpl.create(PermissionCheckerFactoryImpl.java:48) ~[portal-impl.jar:?]
  	at com.liferay.portal.kernel.security.permission.PermissionCheckerFactoryUtil.create(PermissionCheckerFactoryUtil.java:18) ~[portal-kernel.jar:?]
  	at com.liferay.site.util.RecentGroupManager.getRecentGroups(RecentGroupManager.java:113) ~[bundleFile:?]
  	at com.liferay.site.util.RecentGroupManager.getRecentGroups(RecentGroupManager.java:91) ~[bundleFile:?]
  	at com.liferay.product.navigation.site.administration.internal.display.context.SiteAdministrationPanelCategoryDisplayContext.isShowSiteSelector(SiteAdministrationPanelCategoryDisplayContext.java:453) ~[bundleFile:?]

 

Environment

• Liferay DXP 7.4 Update 86+

 

Resolution

• The error was caused by the Guest user granted the “View Site and Asset Library Administration” permission. After removing the permission from Guest user, the error won't occur.
  

Additional Information

• LPS-195844 prevents the error happening even if the permission is accidentally granted to the Guest user.