{"action":"opened","issue":{"url":"https://api.github.com/repos/joel-costigliola/assertj-core/issues/444","labels_url":"https://api.github.com/repos/joel-costigliola/assertj-core/issues/444/labels{/name}","comments_url":"https://api.github.com/repos/joel-costigliola/assertj-core/issues/444/comments","events_url":"https://api.github.com/repos/joel-costigliola/assertj-core/issues/444/events","html_url":"https://github.com/joel-costigliola/assertj-core/issues/444","id":90349042,"number":444,"title":"conainsOnly error should not display elements not found if there is none","user":{"login":"joel-costigliola","id":382613,"avatar_url":"https://avatars.githubusercontent.com/u/382613?v=3","gravatar_id":"","url":"https://api.github.com/users/joel-costigliola","html_url":"https://github.com/joel-costigliola","followers_url":"https://api.github.com/users/joel-costigliola/followers","following_url":"https://api.github.com/users/joel-costigliola/following{/other_user}","gists_url":"https://api.github.com/users/joel-costigliola/gists{/gist_id}","starred_url":"https://api.github.com/users/joel-costigliola/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/joel-costigliola/subscriptions","organizations_url":"https://api.github.com/users/joel-costigliola/orgs","repos_url":"https://api.github.com/users/joel-costigliola/repos","events_url":"https://api.github.com/users/joel-costigliola/events{/privacy}","received_events_url":"https://api.github.com/users/joel-costigliola/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-23T10:30:00Z","updated_at":"2015-06-23T10:30:00Z","closed_at":null,"body":"it makes the error confusing:\r\n```\r\njava.lang.AssertionError: \r\nExpecting:\r\n  <[Frodo 33 years old Hobbit,\r\n    Legolas 1000 years old Elf,\r\n    Aragorn 87 years old Man,\r\n    Boromir 37 years old Man]>\r\nto contain only:\r\n  <[Aragorn 87 years old Man,\r\n    Frodo 33 years old Hobbit,\r\n    Legolas 1000 years old Elf]>\r\nelements not found:\r\n  <[]>\r\nand elements not expected:\r\n  <[Boromir 37 years old Man]>\r\n```"}}