{"action":"opened","issue":{"url":"https://api.github.com/repos/spring-projects/spring-boot/issues/9057","repository_url":"https://api.github.com/repos/spring-projects/spring-boot","labels_url":"https://api.github.com/repos/spring-projects/spring-boot/issues/9057/labels{/name}","comments_url":"https://api.github.com/repos/spring-projects/spring-boot/issues/9057/comments","events_url":"https://api.github.com/repos/spring-projects/spring-boot/issues/9057/events","html_url":"https://github.com/spring-projects/spring-boot/issues/9057","id":225595190,"number":9057,"title":"Create iterable ConfigurationPropertySource","user":{"login":"philwebb","id":519772,"avatar_url":"https://avatars2.githubusercontent.com/u/519772?v=3","gravatar_id":"","url":"https://api.github.com/users/philwebb","html_url":"https://github.com/philwebb","followers_url":"https://api.github.com/users/philwebb/followers","following_url":"https://api.github.com/users/philwebb/following{/other_user}","gists_url":"https://api.github.com/users/philwebb/gists{/gist_id}","starred_url":"https://api.github.com/users/philwebb/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/philwebb/subscriptions","organizations_url":"https://api.github.com/users/philwebb/orgs","repos_url":"https://api.github.com/users/philwebb/repos","events_url":"https://api.github.com/users/philwebb/events{/privacy}","received_events_url":"https://api.github.com/users/philwebb/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-05-02T05:38:57Z","updated_at":"2017-05-02T05:38:57Z","closed_at":null,"body":"The `ConfigurationPropertySource` interface introduced in #9000 returns an empty iterator if the underlying source is not iterable. This was following the same design as `SystemPropertySource` when the underlying `Map` can be security restricted.\r\n\r\nIn hindsight, it's better if we have a clean separation between iterable and non-iterable `ConfigurationPropertySources`. We can hide the unusual quirk of `SystemPropertySource` when we adapt the source to keep our interfaces more honest."}}
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