static O je_executeThenStatements(L<JE_CascadeEntry> rule) {
  O result = null;
  int i = je_indexOfThen(rule);
  if (i < 0) i = 0; // all then
  for (; i < l(rule); i++) {
    JE_CascadeEntry e = rule.get(i);
    continue unless e.java;
    result = safeInterpretedJavaEval(e.tok);
  }
  ret result;
}

Began life as a copy of #1012917