java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.isAsyncStarted() while using Mockito with Junit

Question

I am trying to get my feet wet with TDD. I am trying to write unit test cases for controllers using Mockito in conjunction with MockMvc and Junit.

But I am getting a

Answer 1

Error message indicates that you have wrong version of Servlet API in your classpath.

If you are using Gradle the execute

gradle dependencies

analyze the dependency tree and exclude the 'servlet-api' dependencies with version less than 3.0. You can do the following to exclude

compile ('javax.servlet:jsp-api:2.0'){
    exclude module : 'servlet-api'
}

There can be multiple dependencies which further include servlet-api-2.x. Exclude all those