the magic in RpcContext.getContext().asyncCall()

- [x] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.

## Ask your question here
when i use RpcContext.getContext().asyncCall() like below

RpcContext.getContext().asyncCall(() -> userListService.inList(param))
.handle((v, t) -> {
if (Objects.isNull(t)) {
log.info("inListAsync param {} result {}", JSON.toJSONString(param), v);
return v;
} else {
log.error("inListAsyncError param {} result {}", JSON.toJSONString(param), JSON.toJSONString(v), t);
}
return false;
});

the userListService definition is
**boolean inList(UserListParam param);**

when i log in provider server i see server return true，but when i log in consumer server i see i got false
I don't know what happened here, so appreciate if someone can help 。

Start by tracing the RpcContext.getContext().asyncCall() entry point and compare the provider's returned value with the consumer's handle callback. Determine why inList returns true on the provider but appears as false in the consumer, and document a reproducible explanation or correction.

Written by the indexing model from the issue text.