title: Could not autowire field: can't to com.sun.proxy.$Proxy22
body: <pre><code>Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected com.cms.service.FolderService com.cms.action.BaseAction.folderService; nested exception is java.lang.IllegalArgumentException: Can not set com.cms.service.FolderService field com.cms.action.BaseAction.folderService to com.sun.proxy.$Proxy22
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:518)
      at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
      ... 30 more
  Caused by: java.lang.IllegalArgumentException: Can not set com.cms.service.FolderService field com.cms.action.BaseAction.folderService to com.sun.proxy.$Proxy22
      at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:146)
      at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:150)
      at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63)
      at java.lang.reflect.Field.set(Field.java:657)
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
      ... 32 more
  </code></pre>
  
  <p>this is my baseAction</p>
  
  <pre><code>public class BaseAction {
  
      @Autowired
      protected FolderService folderService;
  
      @Autowired
      protected ArticleService fileService;
  
      @Autowired
      protected TemplateService themeService;
  
      @Autowired
      protected HeadlineService headlineService;
  
      protected final Logger logger = Logger.getLogger(this.getClass());
  }
  </code></pre>
  
  <p>and that's my FolderService </p>
  
  <pre><code>@Service
  public class FolderService {
  
      protected final Logger logger = Logger.getLogger(this.getClass());
  
      @Autowired
      private FolderDao folderDao;
  
      @Autowired
      private AdminFolderDao adminFolderDao;
  
   ...................next is the java method
  
  }
  </code></pre>