org.springframework.web.client.HttpClientErrorException: 401 Unauthorized

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Root Cause Analysis

  1. org.springframework.web.client.HttpClientErrorException

    401 Unauthorized

    at org.springframework.web.client.DefaultResponseErrorHandler.handleError()
  2. Spring
    DefaultResponseErrorHandler.handleError
    1. org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91)[spring-web-4.2.5.RELEASE.jar!/:4.2.5.RELEASE]
    1 frame
  3. OAuth2 for Spring Security
    OAuth2AccessTokenSupport$AccessTokenErrorHandler.handleError
    1. org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport$AccessTokenErrorHandler.handleError(OAuth2AccessTokenSupport.java:244)[spring-security-oauth2-2.0.9.RELEASE.jar!/:na]
    1 frame
  4. Spring
    RestTemplate.execute
    1. org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:641)[spring-web-4.2.5.RELEASE.jar!/:4.2.5.RELEASE]
    2. org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:597)[spring-web-4.2.5.RELEASE.jar!/:4.2.5.RELEASE]
    3. org.springframework.web.client.RestTemplate.execute(RestTemplate.java:565)[spring-web-4.2.5.RELEASE.jar!/:4.2.5.RELEASE]
    3 frames
  5. OAuth2 for Spring Security
    OAuth2AccessTokenSupport.retrieveToken
    1. org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport.retrieveToken(OAuth2AccessTokenSupport.java:137)[spring-security-oauth2-2.0.9.RELEASE.jar!/:na]
    1 frame