code: public static void mount(Object owner, VirtualFile target, MountOption... mountOptions) throws IOException {
          mount(new SimpleMountOwner(owner), target, mountOptions);
      }
docs: Mount provided {@link VirtualFile} (if not mounted) and add an owner entry.  Also creates a back-reference to from the owner to the target.
  
  @param owner        Object that owns the reference to the mount
  @param target       VirtualFile to mount
  @param mountOptions optional configuration to use for mounting
  @throws IOException when the target can not be mounted.