{"action":"opened","issue":{"url":"https://api.github.com/repos/FasterXML/jackson-dataformats-binary/issues/97","repository_url":"https://api.github.com/repos/FasterXML/jackson-dataformats-binary","labels_url":"https://api.github.com/repos/FasterXML/jackson-dataformats-binary/issues/97/labels{/name}","comments_url":"https://api.github.com/repos/FasterXML/jackson-dataformats-binary/issues/97/comments","events_url":"https://api.github.com/repos/FasterXML/jackson-dataformats-binary/issues/97/events","html_url":"https://github.com/FasterXML/jackson-dataformats-binary/issues/97","id":238806075,"number":97,"title":"[ion] Ion type annotations not written for scalar and list types on serialization","user":{"login":"mcliedtke","id":5621016,"avatar_url":"https://avatars0.githubusercontent.com/u/5621016?v=3","gravatar_id":"","url":"https://api.github.com/users/mcliedtke","html_url":"https://github.com/mcliedtke","followers_url":"https://api.github.com/users/mcliedtke/followers","following_url":"https://api.github.com/users/mcliedtke/following{/other_user}","gists_url":"https://api.github.com/users/mcliedtke/gists{/gist_id}","starred_url":"https://api.github.com/users/mcliedtke/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mcliedtke/subscriptions","organizations_url":"https://api.github.com/users/mcliedtke/orgs","repos_url":"https://api.github.com/users/mcliedtke/repos","events_url":"https://api.github.com/users/mcliedtke/events{/privacy}","received_events_url":"https://api.github.com/users/mcliedtke/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-06-27T10:30:29Z","updated_at":"2017-06-27T10:30:29Z","closed_at":null,"body":"Creating an issue based on the [Google Groups discussion](https://groups.google.com/forum/#!topic/jackson-user/MO_w7n1oyFs). \r\n\r\nIssue: Ion type annotations are not written when using [IonAnnotationTypeSerializer](https://github.com/FasterXML/jackson-dataformats-binary/blob/master/ion/src/main/java/com/fasterxml/jackson/dataformat/ion/polymorphism/IonAnnotationTypeSerializer.java). This is due to un-implemented `writeTypePrefixForScalar` and `writeTypePrefixForArray` methods in the class. \r\n\r\nWill see if I can work on a PR, with tests, for the fix. "}}
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