code: public boolean exists(VirtualFile mountPoint, VirtualFile target) {
          final File file = getFile(mountPoint, target);
          return privileged ? doPrivileged(new PrivilegedAction<Boolean>() {
              public Boolean run() {
                  return Boolean.valueOf(VFSUtils.exists(file));
              }
          }).booleanValue() : VFSUtils.exists(file);
      }
docs: {@inheritDoc}