#vulnerable code 
                                @GET
    @Path("{token}/project")
    @Metric(HTTP_GET_PROJECT)
    public Response getDashboard(@PathParam("token") String token) {
        TokenValue tokenValue = tokenManager.getTokenValueByToken(token);

        if (tokenValue == null) {
            log.debug("Requested token {} not found.", token);
            return Response.badRequest("Invalid token.");
        }

        final User user = tokenValue.user;
        final int dashId = tokenValue.dashId;

        DashBoard dashBoard = user.profile.getDashById(dashId);

        return ok(dashBoard.toString());
    } 
                            #location 17 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @GET
    @Path("{token}/project")
    @Metric(HTTP_GET_PROJECT)
    public Response getDashboard(@PathParam("token") String token) {
        TokenValue tokenValue = tokenManager.getTokenValueByToken(token);

        if (tokenValue == null) {
            log.debug("Requested token {} not found.", token);
            return Response.badRequest("Invalid token.");
        }

        return ok(tokenValue.dash.toString());
    }