presto-main/src/main/java/io/prestosql/execution/buffer/ClientBuffer.java/ClientBuffer/toString
class ClientBuffer:    @Override
    public String toString()
    {
        @SuppressWarnings("FieldAccessNotGuarded")
        long sequenceId = currentSequenceId.get();

        @SuppressWarnings("FieldAccessNotGuarded")
        boolean destroyed = this.destroyed.get();

        return toStringHelper(this)
                .add("bufferId", bufferId)
                .add("sequenceId", sequenceId)
                .add("destroyed", destroyed)
                .toString();
    }