Untitled

@Controller
public class TeacherController {

    TestController testcont = TestController.getInstance();


    @RequestMapping(value = "/sendTest", method = RequestMethod.POST)
    public String sendTest()
                    throws IOException, ServletException{

        for(Test test : testcont.showAllTests()){
            if(test.getName().equals("selection")){
                testcont.SetActiveTest(test);
                System.out.println(testcont.getActiveTest());
                //return "Test sent successfully to students! <a href='/Teacher'>Back</a>";
            }
        }
        //return "Something went wrong <a href='/Teacher'>Back</a>";
        return "Teacher";
    }

    @RequestMapping(value = "/resetCurrentTest", method = RequestMethod.POST)
    public String resetCurrentTest(){
        testcont.SetActiveTest(null);
        //return "Current test for students was cleared! <a href='/Teacher'>Back</a>";
        return "Teacher";
    }


    //@RequestMapping(value = "/currentTestOptions", method = RequestMethod.GET)
    @ModelAttribute("currentTestOptions")
    public List<Test> currentTestOptions() {
        return testcont.showAllTests();

    }

    //@RequestMapping(value = "/availableTestList", method = RequestMethod.GET)
    @ModelAttribute("availableTestList")
    public List<Test> availableTestList(){
        return testcont.showAllTests();
    }
}

<body>
    <p>
        <a href='/Teacher/NewTest'>New Test upload</a>
    </p>
    <div
        style='height: 150px; width: 400px; border: 1px solid #ccc; font: 16px/26px Georgia, Garamond, Serif; overflow: auto;'>
        <form action='@{/sendTest()}' method='post'>
            <fieldset>
                <label>Select test</label>
                <select class="form-control" th:field="${test.getName}">
                    <option

                    th:each="test : ${currentTestOptions}"
                    th:text="${test.getName}"

                    ></option>
                </select>
            </fieldset>
            <input type='submit' value='Submit'>
        </form>
    </div>
    <form action='@{/resetCurrentTest}' method='post'>
        <input type='submit' value='Clear'>
    </form>
    <a> Current Test for students: </a>
    <p th:text="@{/getActiveTest}" ></p>
    <p>All available tests on server:</p>
    <div
        style='height: 200px; width: 400px; border: 1px solid #ccc; font: 16px/26px Georgia, Garamond, Serif; overflow: auto;'>
        <th:block th:each="test : @{availableTestList}">
    </div>
</body>