Facebook, no suitable HttpMessageConverter found

[jdevWF]

Hey everyone,

I been working on a proof on concept at work.. Just trying to get oAuth2 connection from my client application to facebook. I got to the point where my client app is trying to get the access_token from facebook, but then I get the following exceptions..

2012-09-11 06:28:34.458 PDT [tomcat-http--39] DEBUG client.token.grant.code.AuthorizationCodeAccessTokenProvider - Retrieving token from https://graph.facebook.com/oauth/access_token?client_id=XXXXXX&client_secret=XXXXXX
2012-09-11 06:28:34.507 PDT [tomcat-http--39] DEBUG org.springframework.web.client.RestTemplate - Created POST request for "https://graph.facebook.com/oauth/access_token?client_id=XXXXXX&client_secret=XXXXX"
2012-09-11 06:28:35.207 PDT [tomcat-http--39] DEBUG org.springframework.web.client.RestTemplate - POST request for "https://graph.facebook.com/oauth/access_token?client_id=XXXXXXX&client_secret=XXXXXX" resulted in 200 (OK)
2012-09-11 06:28:35.262 PDT [tomcat-http--39] DEBUG springframework.security.web.access.ExceptionTranslationFilter - Access is denied (user is not anonymous); delegating to AccessDeniedHandler
org.springframework.security.oauth2.client.resource.OAuth2AccessDeniedException: Error requesting access token.
        at org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport.retrieveToken(OAuth2AccessTokenSupport.java:102)
        at org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider.obtainAccessToken(AuthorizationCodeAccessTokenProvider.java:56)
        at org.springframework.security.oauth2.client.token.AccessTokenProviderChain.obtainNewAccessTokenInternal(AccessTokenProviderChain.java:110)
        at org.springframework.security.oauth2.client.token.AccessTokenProviderChain.obtainAccessToken(AccessTokenProviderChain.java:90)
...
Caused by: org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [org.springframework.security.oauth2.common.OAuth2AccessToken] and content type [text/plain;charset=UTF-8]
        at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:84)
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:446)
        at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:409)
        at org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport.retrieveToken(OAuth2AccessTokenSupport.java:94)
        ... 44 more

I have the following messageConverters injected, just like in the tonr2 sample app..

<property name="messageConverters">
    <list>
        <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
            <property name="supportedMediaTypes">
                <list>
                    <bean class="org.springframework.http.MediaType">
                        <!--facebook sends its json as text/javascript for some reason -->
                        <constructor-arg value="text" />
                        <constructor-arg value="javascript" />
                    </bean>
                    <bean class="org.springframework.http.MediaType">
                        <constructor-arg value="application" />
                        <constructor-arg value="json" />
                    </bean>
                </list>
            </property>
        </bean>
    </list>
</property>

What am I missing here? Any help would be really appreciated.. Thanks