@Override
  public void registerImports(String className, Collection<String> classImports, Collection<String> staticImports) {
    final String key = className.replace('.', '/');
    if (!classImports.isEmpty() || !staticImports.isEmpty()) {
      myImportRefs.put(key, Pair.create(classImports, staticImports));
    }
    else {
      myImportRefs.remove(key);
    }
  }
@Override
  public void registerImports(String className, Collection<String> classImports, Collection<String> staticImports)