Likes functionality can be broken if a following user no longer exists and the site allows anonymous access

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      Reported on CAC. See this comment.

      The logs will show =

      ERROR [http-8090-6] [like.rest.resources.LikableContentResource] getLikes REST resource method error:
...
url: /confluence/rest/likes/1.0/content/14614790/likes
java.lang.NullPointerException
        at com.atlassian.confluence.follow.DefaultFollowManager$1.apply(DefaultFollowManager.java:75)

      or

      2013-10-24 09:02:27,191 ERROR [http-8090-6] [like.rest.resources.LikableContentResource] getCommentLikes REST resource method error:
...
 url: /confluence/rest/likes/1.0/content/1310726/comment-likes
java.lang.NullPointerException
        at com.atlassian.confluence.follow.DefaultFollowManager$1.apply(DefaultFollowManager.java:75)

      Steps to reproduce

      1. Create user A in Confluence
      2. Give "Use Confluence" permission to anonymous users in Global Permissions admin screen
      3. Configure Confluence to use external user directory (Crowd or LDAP)
      4. Create user B in the external user directory and synchronise the directory in Confluence
      5. As user A, start following user B in Confluence
      6. Remove user B in the external user directory and synchronise the directory in Confluence
      7. As user A, go to any Confluence page

            Assignee:
            Kenny MacLeod
            Reporter:
            Paul Curren
            Votes:
            4 Vote for this issue
            Watchers:
            5 Start watching this issue

              Created:
              Updated:
              Resolved: