Trying to add Spring Mobile to my current Spring MVC project

Question

Trying to add Spring Mobile to my current Spring MVC project

I am trying to add Spring Mobile to my current Spring MVC project, but I keep getting the following error:

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.mobile.device.Device]: Specified class is an interface org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:728) root cause org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.mobile.device.Device]: Specified class is an interface org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:101) org.springframework.web.method.annotation.ModelAttributeMethodProcessor.createAttribute(ModelAttributeMethodProcessor.java:136) org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.createAttribute(ServletModelAttributeMethodProcessor.java:81) org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:102) org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:75) org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:162) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:123) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:100) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:604) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:565) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

Here is my controller:

 @Controller @RequestMapping("/ask") class IndexController { private static final Logger logger = LoggerFactory.getLogger(IndexController.class); @RequestMapping(method = RequestMethod.GET) public String displayRequestPage(Device device, SitePreference sitePreference) { logger.info("SitePreference : " + sitePreference); logger.info("Device : " + device); String page = "index"; if (device.isMobile()) { logger.info("Hello mobile user!"); page = page + "-mobile"; } else if (device.isTablet()) { logger.info("Hello tablet user!"); page = page + "-tablet"; } else { logger.info("Hello desktop user!"); } return "index"; } }

and here is my webconfig:

 @Configuration @EnableWebMvc @ComponentScan(basePackages= {"com.johnathanmsmith.mvc.web"}) public class WebMVCConfig extends WebMvcConfigurerAdapter { private static final String MESSAGE_SOURCE = "/WEB-INF/classes/messages"; private static final Logger logger = LoggerFactory.getLogger(WebMVCConfig.class); @Bean public ViewResolver resolver() { UrlBasedViewResolver url = new UrlBasedViewResolver(); url.setPrefix("views/"); url.setViewClass(JstlView.class); url.setSuffix(".jsp"); return url; } @Bean public LiteDeviceDelegatingViewResolver liteDeviceAwareViewResolver() { InternalResourceViewResolver delegate = new InternalResourceViewResolver(); delegate.setPrefix("views/"); delegate.setSuffix(".jsp"); LiteDeviceDelegatingViewResolver resolver = new LiteDeviceDelegatingViewResolver(delegate); resolver.setMobilePrefix("mobile/"); resolver.setTabletPrefix("tablet/"); return resolver; } @Bean(name = "messageSource") public MessageSource configureMessageSource() { logger.debug("setting up message source"); ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource(); messageSource.setBasename(MESSAGE_SOURCE); messageSource.setCacheSeconds(5); messageSource.setDefaultEncoding("UTF-8"); return messageSource; } @Bean public LocaleResolver localeResolver() { SessionLocaleResolver lr = new org.springframework.web.servlet.i18n.SessionLocaleResolver(); lr.setDefaultLocale(Locale.ENGLISH); return lr; } @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { logger.debug("setting up resource handlers"); registry.addResourceHandler("/resources/").addResourceLocations("/resources/**"); } @Override public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) { logger.debug("configureDefaultServletHandling"); configurer.enable(); } @Override public void addInterceptors(final InterceptorRegistry registry) { registry.addInterceptor(new LocaleChangeInterceptor()); registry.addInterceptor(new DeviceResolverHandlerInterceptor()); } @Bean public SimpleMappingExceptionResolver simpleMappingExceptionResolver() { SimpleMappingExceptionResolver b = new SimpleMappingExceptionResolver(); Properties mappings = new Properties(); mappings.put("org.springframework.web.servlet.PageNotFound", "p404"); mappings.put("org.springframework.dao.DataAccessException", "dataAccessFailure"); mappings.put("org.springframework.transaction.TransactionException", "dataAccessFailure"); b.setExceptionMappings(mappings); return b; } }