b33cabda__0_25_dev____System_Properties__Description
[Property] org.apache.catalina.startup. RealmRuleSet.MAX_NESTED_REALM_LEVELS [Description] 
The CombinedRealm allows nested Realms. This property controls the maximum permitted number of levels of nesting. If not specified, the default value of 3 will be used.
Apache Tomcat 8 Configuration Reference (8.0.25-dev) - System Properties
Description