https://doc.wikimedia.org/mediawiki-core/REL1_39/php/classMessageCache.html
MediaWiki: MessageCache Class Reference
mediawikiclassreference
https://doc.wikimedia.org/mediawiki-core/master/php/interfaceMediaWiki_1_1Language_1_1Hook_1_1MessageCache____getHook.html
MediaWiki: MediaWiki\Language\Hook\MessageCache__getHook Interface Reference
mediawikilanguagehookinterfacereference
https://access.redhat.com/webassets/avalon/d/red_hat_jboss_enterprise_application_platform/7.3/javadocs/com/sun/mail/imap/MessageCache.html
MessageCache (Red Hat JBoss Enterprise Application Platform 7.3.0.GA public API)
red hat jboss