private static int findLineNumber(@NonNls String bytecode, int l) {
    int idx = bytecode.indexOf("\n    LINENUMBER " + l + " ");
    if (idx != -1) {
      // shift by one to skip '\n'
      return idx + 1;
    } else {
      return -1;
    }
  }
private static int findLineNumber(@NonNls String bytecode, int l)