anchor.diff:          }
       }
   
  -    private static final Map<String, String> PAREN_MAP = Collections.unmodifiableMap(new HashMap<String, String>() {
  -        {
  -            put("(", ")");
  -            put("[", "]");
  -            put("{", "}");
  -        }
  -    });
  +    private static final Map<String, String> PAREN_MAP =
  +        Maps.of(
  +            "(", ")",
  +            "[", "]",
  +            "{", "}"
  +        );
   
       protected void enterParenCallback(String text) {}
   
  
positive.code:     import java.util.Collections;
      import java.util.Arrays;
      import java.util.stream.IntStream;
  }
  
  @members {
  
negative.code: }
  
  @header {
      import java.util.Deque;
      import java.util.ArrayDeque;
      import java.util.Map;
  