static L<S> splitByJavaToken(S s, S splitToken) {
  L<S> tok = javaTok(s);
  new L<S> l;
  int i = 1;
  while (i < l(tok)) {
    int j = i;
    while (i < l(tok)) {
      j = indexOf(tok, splitToken, i);
      if (j == i) i += 2; else break;
    }
    if (i >= l(tok)) break;
    if (j < 0) j = l(tok);
    l.add(join(tok.subList(i, j-1)));
    i = j+2;
  }
  ret l;
}