MinJun Kweon

**Bug description** When using MongoItemReader with `setQuery(Query)`, `setSort(Map)`, `Sort` doesn't works. If you wanna use `setSort()` method, you should use `setQuery(String)` method. (If you use `MongoItemReaderBuilder`, it might be `jsonQuery()`)...

I tried to parse Korean in HTML but it isn't working. I think it doesn't use NSString but cString on parsing. Any character must be in ASCII scope if it...

Cannot deserialize TopicPartition from JobRepository

4

Hi. I use MySQL for JobRepository. It serialize ExecutionContext as String by JacksonObjectMapper. It seems to forcing to `Map`'s key type must be `String`. (`Map`) You can see [this](https://github.com/spring-projects/spring-batch/blob/master/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/Jackson2ExecutionContextStringSerializer.java#L130). For...