{"action":"created","issue":{"url":"https://api.github.com/repos/ceylon/ceylon/issues/6068","repository_url":"https://api.github.com/repos/ceylon/ceylon","labels_url":"https://api.github.com/repos/ceylon/ceylon/issues/6068/labels{/name}","comments_url":"https://api.github.com/repos/ceylon/ceylon/issues/6068/comments","events_url":"https://api.github.com/repos/ceylon/ceylon/issues/6068/events","html_url":"https://github.com/ceylon/ceylon/issues/6068","id":137907339,"number":6068,"title":"language module version 1.2.2 not compatible with 1.2.1 modules","user":{"login":"jvasileff","id":236050,"avatar_url":"https://avatars.githubusercontent.com/u/236050?v=3","gravatar_id":"","url":"https://api.github.com/users/jvasileff","html_url":"https://github.com/jvasileff","followers_url":"https://api.github.com/users/jvasileff/followers","following_url":"https://api.github.com/users/jvasileff/following{/other_user}","gists_url":"https://api.github.com/users/jvasileff/gists{/gist_id}","starred_url":"https://api.github.com/users/jvasileff/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jvasileff/subscriptions","organizations_url":"https://api.github.com/users/jvasileff/orgs","repos_url":"https://api.github.com/users/jvasileff/repos","events_url":"https://api.github.com/users/jvasileff/events{/privacy}","received_events_url":"https://api.github.com/users/jvasileff/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ceylon/ceylon/labels/m-runtime","name":"m-runtime","color":"00aa00"},{"url":"https://api.github.com/repos/ceylon/ceylon/labels/prio-high","name":"prio-high","color":"fbca04"},{"url":"https://api.github.com/repos/ceylon/ceylon/labels/t-bug","name":"t-bug","color":"e10c02"}],"state":"closed","locked":false,"assignee":{"login":"tombentley","id":879487,"avatar_url":"https://avatars.githubusercontent.com/u/879487?v=3","gravatar_id":"","url":"https://api.github.com/users/tombentley","html_url":"https://github.com/tombentley","followers_url":"https://api.github.com/users/tombentley/followers","following_url":"https://api.github.com/users/tombentley/following{/other_user}","gists_url":"https://api.github.com/users/tombentley/gists{/gist_id}","starred_url":"https://api.github.com/users/tombentley/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tombentley/subscriptions","organizations_url":"https://api.github.com/users/tombentley/orgs","repos_url":"https://api.github.com/users/tombentley/repos","events_url":"https://api.github.com/users/tombentley/events{/privacy}","received_events_url":"https://api.github.com/users/tombentley/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/ceylon/ceylon/milestones/14","html_url":"https://github.com/ceylon/ceylon/milestones/1.2.2","labels_url":"https://api.github.com/repos/ceylon/ceylon/milestones/14/labels","id":1497228,"number":14,"title":"1.2.2","description":"","creator":{"login":"FroMage","id":179265,"avatar_url":"https://avatars.githubusercontent.com/u/179265?v=3","gravatar_id":"","url":"https://api.github.com/users/FroMage","html_url":"https://github.com/FroMage","followers_url":"https://api.github.com/users/FroMage/followers","following_url":"https://api.github.com/users/FroMage/following{/other_user}","gists_url":"https://api.github.com/users/FroMage/gists{/gist_id}","starred_url":"https://api.github.com/users/FroMage/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/FroMage/subscriptions","organizations_url":"https://api.github.com/users/FroMage/orgs","repos_url":"https://api.github.com/users/FroMage/repos","events_url":"https://api.github.com/users/FroMage/events{/privacy}","received_events_url":"https://api.github.com/users/FroMage/received_events","type":"User","site_admin":false},"open_issues":6,"closed_issues":60,"state":"open","created_at":"2016-01-11T13:38:44Z","updated_at":"2016-03-03T14:34:27Z","due_on":"2016-02-29T23:00:00Z","closed_at":null},"comments":23,"created_at":"2016-03-02T15:36:30Z","updated_at":"2016-03-03T15:02:09Z","closed_at":"2016-03-03T14:34:27Z","body":"The changed return type of `Map.keys` in https://github.com/ceylon/ceylon/commit/b87e569c48177eafbb5f82b8aa5d59f27cd369b5 breaks compatibility.\r\n\r\nWith `module.ceylon`:\r\n```ceylon\r\nmodule simple \"1.0.0\" {\r\n    import ceylon.collection \"1.2.1\";\r\n}\r\n```\r\nand `run.ceylon`:\r\n```ceylon\r\nimport ceylon.collection {\r\n    HashMap\r\n}\r\n\r\nshared void run() {\r\n    noop(HashMap { 1->1 }.keys);\r\n}\r\n```\r\nyou get:\r\n```\r\nException in thread \"main\" java.lang.NoSuchMethodError: ceylon.language.Map.getKeys()Lceylon/language/Collection;\r\n\tat simple.run_.run(run.ceylon:6)\r\n\tat simple.run_.main(run.ceylon)\r\n\tat sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n\tat sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\r\n\tat sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r\n...\r\n```"},"comment":{"url":"https://api.github.com/repos/ceylon/ceylon/issues/comments/191802326","html_url":"https://github.com/ceylon/ceylon/issues/6068#issuecomment-191802326","issue_url":"https://api.github.com/repos/ceylon/ceylon/issues/6068","id":191802326,"user":{"login":"FroMage","id":179265,"avatar_url":"https://avatars.githubusercontent.com/u/179265?v=3","gravatar_id":"","url":"https://api.github.com/users/FroMage","html_url":"https://github.com/FroMage","followers_url":"https://api.github.com/users/FroMage/followers","following_url":"https://api.github.com/users/FroMage/following{/other_user}","gists_url":"https://api.github.com/users/FroMage/gists{/gist_id}","starred_url":"https://api.github.com/users/FroMage/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/FroMage/subscriptions","organizations_url":"https://api.github.com/users/FroMage/orgs","repos_url":"https://api.github.com/users/FroMage/repos","events_url":"https://api.github.com/users/FroMage/events{/privacy}","received_events_url":"https://api.github.com/users/FroMage/received_events","type":"User","site_admin":false},"created_at":"2016-03-03T15:02:09Z","updated_at":"2016-03-03T15:02:09Z","body":"that can wait for 1.2.3, though."}}