{"comment":{"url":"https://api.github.com/repos/VoltDB/voltdb/comments/9405518","html_url":"https://github.com/VoltDB/voltdb/commit/1fe71bae316953593fb6021faacd5b8e2a94458d#commitcomment-9405518","id":9405518,"user":{"login":"vtkstef","id":662716,"avatar_url":"https://avatars.githubusercontent.com/u/662716?v=3","gravatar_id":"","url":"https://api.github.com/users/vtkstef","html_url":"https://github.com/vtkstef","followers_url":"https://api.github.com/users/vtkstef/followers","following_url":"https://api.github.com/users/vtkstef/following{/other_user}","gists_url":"https://api.github.com/users/vtkstef/gists{/gist_id}","starred_url":"https://api.github.com/users/vtkstef/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vtkstef/subscriptions","organizations_url":"https://api.github.com/users/vtkstef/orgs","repos_url":"https://api.github.com/users/vtkstef/repos","events_url":"https://api.github.com/users/vtkstef/events{/privacy}","received_events_url":"https://api.github.com/users/vtkstef/received_events","type":"User","site_admin":false},"position":27,"line":368,"path":"src/frontend/org/voltdb/utils/CatalogUtil.java","commit_id":"1fe71bae316953593fb6021faacd5b8e2a94458d","created_at":"2015-01-22T21:37:29Z","updated_at":"2015-01-22T21:37:29Z","body":"do these need to stay mutable? Can we make them immutable?\r\n\r\n```java\r\nimport com.google.common.collect.ImmutableSortedSet;\r\n// ... \r\nImmutableSortedSet.Builder<Table> exportTables = ImmutableSortedSet.naturalOrder();\r\n// ...\r\nreturn exportTables.build();\r\n``` "}}