code: public List<String> getDirectoryEntries(VirtualFile mountPoint, VirtualFile target) {
          final File file = getFile(mountPoint, target);
          final String[] names = privileged ? doPrivileged(new PrivilegedAction<String[]>() {
              public String[] run() {
                  return file.list();
              }
          }) : file.list();
          return names == null ? Collections.<String>emptyList() : Arrays.asList(names);
      }
docs: {@inheritDoc}