spring security：IllegalArgumentException

Handling error: IllegalArgumentException, No converter found for return value of type: class org.springframework.security.oauth2.common.DefaultOAuth2AccessToken

问题原因jar包缺失

        
     
      com.fasterxml.jackson.core
         
     
      jackson-core
         
     
      2.4.3
     
    
        
     
      com.fasterxml.jackson.core
         
     
      jackson-databind
         
     
      2.4.3