{"action":"opened","issue":{"url":"https://api.github.com/repos/TakahikoKawasaki/nv-websocket-client/issues/18","labels_url":"https://api.github.com/repos/TakahikoKawasaki/nv-websocket-client/issues/18/labels{/name}","comments_url":"https://api.github.com/repos/TakahikoKawasaki/nv-websocket-client/issues/18/comments","events_url":"https://api.github.com/repos/TakahikoKawasaki/nv-websocket-client/issues/18/events","html_url":"https://github.com/TakahikoKawasaki/nv-websocket-client/issues/18","id":122472037,"number":18,"title":"Use CopyOnWriteArrayList for Listeners","user":{"login":"eku","id":418685,"avatar_url":"https://avatars.githubusercontent.com/u/418685?v=3","gravatar_id":"","url":"https://api.github.com/users/eku","html_url":"https://github.com/eku","followers_url":"https://api.github.com/users/eku/followers","following_url":"https://api.github.com/users/eku/following{/other_user}","gists_url":"https://api.github.com/users/eku/gists{/gist_id}","starred_url":"https://api.github.com/users/eku/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eku/subscriptions","organizations_url":"https://api.github.com/users/eku/orgs","repos_url":"https://api.github.com/users/eku/repos","events_url":"https://api.github.com/users/eku/events{/privacy}","received_events_url":"https://api.github.com/users/eku/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-16T10:25:38Z","updated_at":"2015-12-16T10:25:38Z","closed_at":null,"body":"The class ```ListenerManager``` should use ```CopyOnWriteArrayList``` instead of ```ArrayList``` to remove the need for locking the list while informing the listeners. Better performance."}}