SseEmitter

{
    "timeout": 0,
    "handler": {},
    "earlySendAttempts": "new LinkedHashSet<>(8)",
    "complete": true,
    "failure": {
        "detailMessage": "string",
        "cause": {},
        "stackTrace": "new StackTraceElement[0]",
        "suppressedExceptions": "Collections.emptyList()"
    },
    "timeoutCallback": {
        "delegate": {}
    },
    "errorCallback": {},
    "completionCallback": {
        "delegate": {}
    }
}