Несоответствие типов в компоненте java invoke com, использующем jacob

Question

com метод:

VARIANT_BOOL SSR_GetUserTmp([in]LONG dwMachineNumber,[in]BSTR dwEnrollNumber,
     * [in]LONG dwFingerIndex,[out]BYTE* TmpData,[out]LONG* TmpLength

)

код в Java:

public Map<String,Object> getUserTmpEx(String badgenumber, int index) {
    Map<String,Object> temp = new HashMap<>();  
    Variant machingNumber = new Variant(MACHINE_NUMBER,true);
    Variant enrollNumber = new Variant(badgenumber,true);
    Variant fingureIndex = new Variant(index,true);
    Variant flag = new Variant(0,true);
    //below line is the type mismathch error happened.
    Variant tmpData = new Variant(0,true);
    Variant length = new Variant(0,true);
    boolean result = false;
    result = zkem.invoke(GET_USERTMPEX,
            machingNumber,
            enrollNumber,
            fingureIndex,
            flag,
            tmpData,
            length
            ).getBoolean();
    log.debug(result+"");
    return temp;
}