c99df3c4_nce_Guide___Configuring_Apache__Description
[Directive] JkMountCopy [Description] 
If this directive is set to "On" in some virtual server, the mounts from the global server will be copied to the virtual server, more precisely all mounts defined by JkMount or JkUnMount. The Mounts defined by JkMountFile and JkAutoAlias will only be inherited, if the VirtualHost does not define it's own JkMountFile or JkAutoAlias. If you want all vhost to inherit mounts from the main server, you can set JkMountCopy to 'All' in the main server. This directive is only allowed inside VirtualHost (with value "On") and in the global server (with value "All"). The default is Off. Starting with version 1.2.26 you can also set it to "All" in the global virtual server. This will switch the default to On.
The Apache Tomcat Connector - Reference Guide - Configuring Apache
Description