RMapCache adds some special characters before

Redisson version - 3.12.3 Java version - 11

final TypedJsonJacksonCodec codec = new TypedJsonJacksonCodec(String.class, JSONObject.class, new ObjectMapper());
JSONObject value = new JSONObject(new HashMap<String, String>() {{
    put("a", "b");
}});
RMapCache<Object, JSONObject> myMapCache = redissonClient.getMapCache("myMapCache", codec);
myMapCache.put("key", value, 14, TimeUnit.DAYS);
RLocalCachedMap<Object, JSONObject> myLocalCachedMap = redissonClient.getLocalCachedMap("myLocalCachedMap", codec, LocalCachedMapOptions.defaults());
myLocalCachedMap.put("key", value);

With use of codec: RMapCache HGETALL returns

1. “"key"”
2. “\x00\x00\x00\x00\x00\x00\x00\x00\t\x00\x00\x00\x00\x00\x00\x00{"a":"b"}” from redis-cli.

RLocalCachedMap returns

1. “"key"”
2. “{"a":"b"}” from redis-cli.

My question - what is the special characters in RMapCache. And how can i read json without this characters by call HGET on raw Redis?

[asarkar]

@Slava96 I’m seeing the same behavior. What did you end up doing?

[jagansankara]

I’m also facing same issue but for different scenario. Key which inserted through Redission library have additional characters and works fine if I read it again through Redission but not with other platform like Python library or redis-cli.

Our requirement is to read/write same key from different application (here it is SpringBoot & Django).