fluid-api/src/main/java/com/fluidbpm/program/api/vo/ABaseFluidJSONObject.java
@XmlTransient
    private Date getLongAsDateFromJson(Long longValueParam)
    {
        if(longValueParam == null)
        {
            return null;
        }

        return new Date(longValueParam);
    }
@XmlTransient
    private Date getLongAsDateFromJson(Long longValueParam)
    {
        if(longValueParam == null)
        {
            return null;
        }

        return new Date(longValueParam);
    }
Converts the {@code Long} timestamp into a {@code Date} object.

Returns {@code null} if {@code longValueParam} is {@code null}.

@param longValueParam The milliseconds since January 1, 1970, 00:00:00 GMT
@return {@code Date} Object from {@code longValueParam}