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