Hi. I'm trying to customize permissions in xwiki using ApplicationReadyEventListener. I override some permission in XWikiPreferences XWikiGlobalRights page to get page deletion work by default for all users. https://gist.github.com/edvorg/4e2771ac02c4c64b705127964bc53c64 I set up permissions in these functions. https://gist.github.com/edvorg/da7f8e64a46b7bbbf16f953e3fcc0e30 This solutions works fine. But I got a problem with fresh xwiki bootstrap. Sometimes I get fully broken xwiki - all macros shows error. And I have something about admin user not having permission to edit some page: https://gist.github.com/edvorg/1bdec91e5483307696bc68841d2cb1d8 I tried to debug all this code but it doesn't make much sense to me. I only found that this CacheChecker thing somehow affects the issue. Could someone point me to possible issues in my solution and maybe describe how this CacheChecker should be used? I would appreciate any help, as we can not get rid of xwiki integration bugs for a long time. Thank you!