static List<String> findImports(String src) {
  List<String> imports = new ArrayList<String>();
  Pattern pattern = Pattern.compile("^\\s*import\\s+(.*?)\\s*;");
  for (String line : toLines(src)) {
    Matcher matcher = pattern.matcher(line);
    if (matcher.find())
      imports.add(matcher.group(1));
  }
  return imports;
}