#vulnerable code 
                                public <T> Future<List<T>> fetchAsync(final JsonObject criteria, final String pojo) {
        return this.reader.fetchAsync(criteria, JqFlow.create(this.analyzer, pojo));
    } 
                            #location 2 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                public <T> Future<List<T>> fetchAsync(final JsonObject criteria, final String pojo) {
        return JqFlow.create(this.analyzer, pojo).inputQrJAsync(criteria).compose(this.reader::fetchAsync);
    }