Management operations flush-cache and list-cached-principals should be documented in Security Guide. You can use these two commands in CLI to read their descriptions: /subsystem=security/security-domain=other:read-operation-description(name=flush-cache) /subsystem=security/security-domain=other:read-operation-description(name=list-cached-principals)
Verification failed in Revision 6.3.0-23. Changes are completely wrong, flush-cache and list-cached-principals are operations related to security domains. They are not physical part of security subsystem or path in CLI command. Use commands mentioned in descripion of this BZ to gain some information about these operations.
This can be verified here: http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/6.3/html-single/Security_Guide/index.html#About_Security_Domains
Verified on stage in Revision 6.3.0-25.