{"action":"closed","issue":{"url":"https://api.github.com/repos/ceylon/ceylon-ide-common/issues/32","repository_url":"https://api.github.com/repos/ceylon/ceylon-ide-common","labels_url":"https://api.github.com/repos/ceylon/ceylon-ide-common/issues/32/labels{/name}","comments_url":"https://api.github.com/repos/ceylon/ceylon-ide-common/issues/32/comments","events_url":"https://api.github.com/repos/ceylon/ceylon-ide-common/issues/32/events","html_url":"https://github.com/ceylon/ceylon-ide-common/issues/32","id":138537113,"number":32,"title":"null value returned from native call (find subtypes)","user":{"login":"bjansen","id":281528,"avatar_url":"https://avatars.githubusercontent.com/u/281528?v=3","gravatar_id":"","url":"https://api.github.com/users/bjansen","html_url":"https://github.com/bjansen","followers_url":"https://api.github.com/users/bjansen/followers","following_url":"https://api.github.com/users/bjansen/following{/other_user}","gists_url":"https://api.github.com/users/bjansen/gists{/gist_id}","starred_url":"https://api.github.com/users/bjansen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bjansen/subscriptions","organizations_url":"https://api.github.com/users/bjansen/orgs","repos_url":"https://api.github.com/users/bjansen/repos","events_url":"https://api.github.com/users/bjansen/events{/privacy}","received_events_url":"https://api.github.com/users/bjansen/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ceylon/ceylon-ide-common/labels/bug","name":"bug","color":"fc2929"}],"state":"closed","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/ceylon/ceylon-ide-common/milestones/3","html_url":"https://github.com/ceylon/ceylon-ide-common/milestones/1.2.3","labels_url":"https://api.github.com/repos/ceylon/ceylon-ide-common/milestones/3/labels","id":1602024,"number":3,"title":"1.2.3","description":"","creator":{"login":"bjansen","id":281528,"avatar_url":"https://avatars.githubusercontent.com/u/281528?v=3","gravatar_id":"","url":"https://api.github.com/users/bjansen","html_url":"https://github.com/bjansen","followers_url":"https://api.github.com/users/bjansen/followers","following_url":"https://api.github.com/users/bjansen/following{/other_user}","gists_url":"https://api.github.com/users/bjansen/gists{/gist_id}","starred_url":"https://api.github.com/users/bjansen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bjansen/subscriptions","organizations_url":"https://api.github.com/users/bjansen/orgs","repos_url":"https://api.github.com/users/bjansen/repos","events_url":"https://api.github.com/users/bjansen/events{/privacy}","received_events_url":"https://api.github.com/users/bjansen/received_events","type":"User","site_admin":false},"open_issues":6,"closed_issues":11,"state":"open","created_at":"2016-02-24T09:15:29Z","updated_at":"2016-05-09T11:36:38Z","due_on":null,"closed_at":null},"comments":1,"created_at":"2016-03-04T17:42:27Z","updated_at":"2016-05-09T11:36:38Z","closed_at":"2016-05-09T11:36:38Z","body":"While trying to find subtypes of `ceylon.collection::Stack`:\r\n```\r\nceylon.language.AssertionError \"null value returned from native call not assignable to Object\"\r\n        at com.redhat.ceylon.compiler.java.Util.checkNull(Util.java:985)\r\n        at com.redhat.ceylon.ide.common.util.FindSubtypesVisitor.visit(FindSubtypesVisitor.ceylon:38)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Tree$ObjectExpression.visit(Tree.java:6954)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Walker.walkExpression(Walker.java:1373)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Tree$Expression.visitChildren(Tree.java:6039)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Visitor.visitAny(Visitor.java:10)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Visitor.visit(Visitor.java:169)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Visitor.visit(Visitor.java:241)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Visitor.visit(Visitor.java:285)\r\n        at com.redhat.ceylon.compiler.typechecker.tree.Visitor.visit(Visitor.java:240)\r\n```"}}