java.lang.NoSuchMethodError: javaxservlet.http.HttpServletRequest.isAsyncStarted()Z

Question

I am trying to run a test with JUnit and Mockito against a spring REST webservice I am building. I came across a bug when trying to run the JUnit test and can't find any information on the problem. The stacktrace is listing the error line as the .andDo(print()) though I got that line directly from a spring.io tutorial http://spring.io/guides/tutorials/rest/3/

Test class code:

public class TestSuite {
    MockMvc mockMvc;

@Mock
RestController controller;

@Before
public void setup(){
    MockitoAnnotations.initMocks(this);
    this.mockMvc = standaloneSetup(controller)
        .setMessageConverters(new MappingJackson2HttpMessageConverter()).build();
}

@Test
public void testREST() throws Exception {
    when(controller.getThing(any(Integer.class))).thenReturn(TestFixture.getREST(1));
    this.mockMvc.perform(get("/{number}", String.valueOf(number))
    .accept(MediaType.APPLICATION_JSON))
    .andDo(print())
    .andExpect(status().isNotFound());
}}

Stacktrace:

java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.isAsyncStarted()Z
at org.springframework.test.web.servlet.result.PrintingResultHandler.printAsyncResult(PrintingResultHandler.java:131)
at org.springframework.test.web.servlet.result.PrintingResultHandler.handle(PrintingResultHandler.java:80)
at org.springframework.test.web.servlet.MockMvc$1.andDo(MockMvc.java:155)
at org.company.test.TestSuite.testREST(TestSuite.java:53)`

Possible solution

Grice
– Grice

2014-09-19 19:29:06 +00:00
Commented Sep 19, 2014 at 19:29 — Grice
– Grice, Commented Sep 19, 2014 at 19:29

Sam Brannen · Accepted Answer · 2014-09-20 22:21:14Z

7

You are using an older version of the Servlet spec (e.g., 2.5); whereas, the version of spring-test that you are using requires at least Servlet 3.0.

As mentioned in the Testing Improvements section of the reference manual,

As of Spring 4.0, the set of mocks in the org.springframework.mock.web package is now based on the Servlet 3.0 API.

So, although Spring Framework 4.0 and 4.1 support Servlet 2.5 for deployment, the Servlet API mocks and the Spring MVC Test Framework in the spring-test module require Servlet 3.0 (specifically version 3.0.1 or higher).

Regards,

Sam (lead of the spring-test module)

answered Sep 20, 2014 at 22:21

Sam Brannen

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2 Comments

user6123723 Over a year ago

I have an app facing the same scenario. The container I need to deploy the app to is only Servlet 2.5 capable. Is there a way to get spring-test to work with 2.5 at least for unit testing?

Sam Brannen Over a year ago

No, it is not possible to use the Mock Servlet API in spring-test with Servlet 2.5. However, as long as you do not rely on any Servlet 3.x features in your production code (e.g., controllers), there is no problem with testing against Servlet 3.x while deploying against Servlet 2.5.

Pol Vandekasseie · Accepted Answer · 2018-11-07 08:36:36Z

2

I was getting this error because the dependency to servlet hadn't been added to my pom.xml adding the next few lines solved my issue

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>test</scope>
</dependency>

answered Nov 7, 2018 at 8:36

Pol Vandekasseie

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