// TODO(cpovirk): Presize to something plausible?
    StringBuilder builder = new StringBuilder();
    if (getClass().getName().startsWith("com.google.common.util.concurrent.")) {
      builder.append(getClass().getSimpleName());
    } else {
      builder.append(getClass().getName());
    }
    builder.append('@').append(toHexString(identityHashCode(this))).append("[status=");
    if (isCancelled()) {

            String msg = e.getMessage();
            if (msg == null || msg.isEmpty()) {
                // NOTE: There's java.nio.charset.MalformedInputException and sun.io.MalformedInputException
                if (e.getClass().getName().endsWith("MalformedInputException")) {
                    msg = "Some input bytes do not match the file encoding.";
                } else {
                    msg = e.getClass().getSimpleName();
                }

	public final fun -deprecated_size ()I
	public final fun byteCount ()J
	public fun equals (Ljava/lang/Object;)Z
	public final fun get (Ljava/lang/String;)Ljava/lang/String;
	public final fun getDate (Ljava/lang/String;)Ljava/util/Date;
	public final fun getInstant (Ljava/lang/String;)Ljava/time/Instant;
	public fun hashCode ()I
	public fun iterator ()Ljava/util/Iterator;
	public final fun name (I)Ljava/lang/String;