title: java.lang.NoClassDefFoundError: org/springframework/core/io/ResourceLoader
body: <p>I am using spring for some testing, and I am getting this error:</p>
  
  <pre><code>java.lang.NoClassDefFoundError: org/springframework/core/io/ResourceLoader  at org.springframework.mock.web.MockHttpServletRequest
  </code></pre>
  
  <p>The JAR that I installed is: spring-test-2.5.6.jar</p>
  
  <p>Do I need another jar besides this?</p>
  
  <p>Thanks</p>