dolphin platform http client with spring webflux

[Kotlin-GDE]

hi, i have 2 questions

1. with spring webflux how to deserialize Flux or Mono in dolphin javafx client (an exception is appear when try to deserialize objects in collections (Flux, List, .....) : Exception in thread "pool-1-thread-1" java.lang.ClassCastException: com.google.gson.internal.LinkedTreeMap cannot be cast to xxxx

2. how to close dolphin platform http client sever (context) or how to implements events likes (startup, shutdown,....) to performe the usage of this dolphin platform