Lots of log created when a user logs in

When a user logs in (and is redirected to his/her dashboard), the following messages appear in the logs:

2011-05-26 19:25:34,841 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:34,866 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:34,868 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:34,927 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:35,576 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:35,599 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:35,602 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:35,606 INFO [org.apache.shindig.common.xml.XmlUtil] Created a new document builder
2011-05-26 19:25:36,264 INFO [org.nuxeo.ecm.platform.ui.web.auth.oauth.NuxeoOAuthFilter] Received OAuth signed request on /nuxeo/site/automation/Workflow.UserProcessPageProvider with consumerKey=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979 and signature method HMAC-SHA1
2011-05-26 19:25:36,281 WARN [com.sun.jersey.spi.container.servlet.WebComponent] A servlet POST request, to the URI http://localhost:8080/nuxeo/site/automation/Workflow.UserProcessPageProvider?ts=13064307371846.430454493500292&opensocial_owner_id=john&opensocial_viewer_id=john&xoauth_signature_publickey=nuxeo4shindig&xoauth_public_key=nuxeo4shindig&oauth_version=1.0&oauth_timestamp=1306430736&oauth_consumer_key=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979&oauth_signature_method=HMAC-SHA1&oauth_nonce=85243697588047&oauth_signature=aGp7iexlLzGsyzncngZkNPhXSIM%3D, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2011-05-26 19:25:36,416 INFO [org.nuxeo.ecm.platform.ui.web.auth.oauth.NuxeoOAuthFilter] Received OAuth signed request on /nuxeo/site/automation/Document.PageProvider with consumerKey=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979 and signature method HMAC-SHA1
2011-05-26 19:25:36,432 WARN [com.sun.jersey.spi.container.servlet.WebComponent] A servlet POST request, to the URI http://localhost:8080/nuxeo/site/automation/Document.PageProvider?ts=13064307373465.286413875874132&opensocial_owner_id=john&opensocial_viewer_id=john&xoauth_signature_publickey=nuxeo4shindig&xoauth_public_key=nuxeo4shindig&oauth_version=1.0&oauth_timestamp=1306430736&oauth_consumer_key=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979&oauth_signature_method=HMAC-SHA1&oauth_nonce=85243849365668&oauth_signature=DwuOUwMjRRoYgdgLi5sUz4n4%2B%2FY%3D, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2011-05-26 19:25:36,479 INFO [org.nuxeo.ecm.platform.ui.web.auth.oauth.NuxeoOAuthFilter] Received OAuth signed request on /nuxeo/site/automation/Document.PageProvider with consumerKey=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979 and signature method HMAC-SHA1
2011-05-26 19:25:36,512 WARN [com.sun.jersey.spi.container.servlet.WebComponent] A servlet POST request, to the URI http://localhost:8080/nuxeo/site/automation/Document.PageProvider?ts=13064307374078.004667851841077&nxrepository=default&opensocial_owner_id=john&opensocial_viewer_id=john&xoauth_signature_publickey=nuxeo4shindig&xoauth_public_key=nuxeo4shindig&oauth_version=1.0&oauth_timestamp=1306430736&oauth_consumer_key=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979&oauth_signature_method=HMAC-SHA1&oauth_nonce=85243908425314&oauth_signature=HPZpT3QTGTAGFLgJc386F2YxvKw%3D, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2011-05-26 19:25:36,611 INFO [org.nuxeo.ecm.platform.ui.web.auth.oauth.NuxeoOAuthFilter] Received OAuth signed request on /nuxeo/site/automation/Document.PageProvider with consumerKey=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979 and signature method HMAC-SHA1
2011-05-26 19:25:36,628 WARN [com.sun.jersey.spi.container.servlet.WebComponent] A servlet POST request, to the URI http://localhost:8080/nuxeo/site/automation/Document.PageProvider?ts=13064307375233.3408610243350267&nxrepository=default&opensocial_owner_id=john&opensocial_viewer_id=john&xoauth_signature_publickey=nuxeo4shindig&xoauth_public_key=nuxeo4shindig&oauth_version=1.0&oauth_timestamp=1306430736&oauth_consumer_key=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979&oauth_signature_method=HMAC-SHA1&oauth_nonce=85244018355463&oauth_signature=MB%2B9atwwfXcXnhwCUfnkSLL9srk%3D, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2011-05-26 19:25:36,651 INFO [org.nuxeo.ecm.platform.ui.web.auth.oauth.NuxeoOAuthFilter] Received OAuth signed request on /nuxeo/site/automation/Workflow.UserTaskPageProvider with consumerKey=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979 and signature method HMAC-SHA1
2011-05-26 19:25:36,665 WARN [com.sun.jersey.spi.container.servlet.WebComponent] A servlet POST request, to the URI http://localhost:8080/nuxeo/site/automation/Workflow.UserTaskPageProvider?ts=13064307375503.301591711351648&opensocial_owner_id=john&opensocial_viewer_id=john&xoauth_signature_publickey=nuxeo4shindig&xoauth_public_key=nuxeo4shindig&oauth_version=1.0&oauth_timestamp=1306430736&oauth_consumer_key=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979&oauth_signature_method=HMAC-SHA1&oauth_nonce=85244078418689&oauth_signature=2jdCukD%2BEfxGtKRD1PdMry%2BbEhQ%3D, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
2011-05-26 19:25:36,728 INFO [org.nuxeo.ecm.platform.ui.web.auth.oauth.NuxeoOAuthFilter] Received OAuth signed request on /nuxeo/site/automation/Document.PageProvider with consumerKey=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979 and signature method HMAC-SHA1
2011-05-26 19:25:36,755 WARN [com.sun.jersey.spi.container.servlet.WebComponent] A servlet POST request, to the URI http://localhost:8080/nuxeo/site/automation/Document.PageProvider?ts=13064307376390.6718305407557636&opensocial_owner_id=john&opensocial_viewer_id=john&xoauth_signature_publickey=nuxeo4shindig&xoauth_public_key=nuxeo4shindig&oauth_version=1.0&oauth_timestamp=1306430736&oauth_consumer_key=nuxeo4shindig-0b972fd3-a575-47e9-9587-c8776b8e1979&oauth_signature_method=HMAC-SHA1&oauth_nonce=85244151054985&oauth_signature=0TJaa5FJEN0lYnTGYX2f%2BTfNXjE%3D, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.

I don't think they are useful.