title: Spring boot & Swagger 2 UI & custom requestmappinghandlermapping - mapping issue
body: <p>I have own RequestMappingHandlerMapping and I am using springfox-swagger-ui. After adding my custom mapping, I am not able to achieve swagger ui at <a href="http://localhost:8080/swagger-ui.html" rel="nofollow">http://localhost:8080/swagger-ui.html</a>. 
  Any ideas?</p>
  
  <p>This is my configuration.</p>
  
  <pre><code>    @Configuration
         public class WebMvcConfig extends WebMvcConfigurationSupport {
      @Override
      @Bean
      public RequestMappingHandlerMapping requestMappingHandlerMapping() {
          return new ApiVersionRequestMappingHandlerMapping("v");
      }
  
      @Override
      public void addResourceHandlers(ResourceHandlerRegistry registry) {
          registry
            .addResourceHandler("/webjars/**")
            .addResourceLocations("(META-INF/resources/webjars");
      }
  }
  </code></pre>
  
  <p>Here's my pom.xml:</p>
  
  <pre><code>&lt;dependency&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;org.springframework.hateoas&lt;/groupId&gt;
          &lt;artifactId&gt;spring-hateoas&lt;/artifactId&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;io.springfox&lt;/groupId&gt;
          &lt;artifactId&gt;springfox-swagger-ui&lt;/artifactId&gt;
          &lt;version&gt;2.4.0&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;io.springfox&lt;/groupId&gt;
          &lt;artifactId&gt;springfox-swagger2&lt;/artifactId&gt;
          &lt;version&gt;2.4.0&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;javax.inject&lt;/groupId&gt;
          &lt;artifactId&gt;javax.inject&lt;/artifactId&gt;
          &lt;version&gt;1&lt;/version&gt;
      &lt;/dependency&gt;
  </code></pre>