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Я получаю эту ошибку (внутренний сервер status 500).

 com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'justification': was expecting ('true', 'false' or 'null')
 at [Source: (org.apache.catalina.connector.CoyoteReader); line: 1, column: 14]
    com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1798)
    com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:673)
    com.fasterxml.jackson.core.json.ReaderBasedJsonParser._reportInvalidToken(ReaderBasedJsonParser.java:2835)
    com.fasterxml.jackson.core.json.ReaderBasedJsonParser._handleOddValue(ReaderBasedJsonParser.java:1889)
    com.fasterxml.jackson.core.json.ReaderBasedJsonParser.nextToken(ReaderBasedJsonParser.java:747)
    com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4129)
    com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3988)
    com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3037)
    dev.knapp.controllers.ReimbursementController.process(ReimbursementController.java:97)
    dev.knapp.servlets.FrontControllerServlet.process(FrontControllerServlet.java:54)
    dev.knapp.servlets.FrontControllerServlet.doPost(FrontControllerServlet.java:69)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
    org.apache.catalina.servlets.DefaultServlet.service(DefaultServlet.java:499)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:357)
    org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:176)
 

Это происходит из-за этого вызова функции (Java).

Reimbursement r = om.readValue(request.getReader(), Reimbursement.class);

Вот моя асинхронная (JavaScript) функция отправки запроса.

 let url = "http://localhost:8080/Project1/newrequest";

    let request = {
        userId: getCook("user_id"), //get from cookie
        eventId: rrEvent, //should be event id//myEvent.event_id, //get id from event name (rrEvent)
        isUrgent: true, //check date of event, compare to current date, if less than 2 weeks set true
        status: "Needs direct supervisor approval",
        justification: document.getElementById('justification').value,
        projectedReimbursement: myEvent.cost,//get from event
        amountReimbursed: 0,
        isOverAvailable: false,//compare to user's available funds
        isOverJustification: "N/A",
        gradeReceived:"N/A",
        workTimeMissed: document.getElementById('missedworktime').value
    }

    let res = await fetch(url, {
        method: "POST",
        headers: {"Content-Type": "application/json"},
        body: JSON.stringify(request),
        credentials: "include"
    });

    let resJson = await res.json()
    .then(res => {
        console.log(res);
    })
    .catch(error => {
        console.log(error);
    })
 

Мы высоко ценим любую помощь или понимание.