{"action":"created","issue":{"url":"https://api.github.com/repos/DiUS/pact-jvm/issues/183","labels_url":"https://api.github.com/repos/DiUS/pact-jvm/issues/183/labels{/name}","comments_url":"https://api.github.com/repos/DiUS/pact-jvm/issues/183/comments","events_url":"https://api.github.com/repos/DiUS/pact-jvm/issues/183/events","html_url":"https://github.com/DiUS/pact-jvm/issues/183","id":116428738,"number":183,"title":"Comparing against null","user":{"login":"venksub","id":14184942,"avatar_url":"https://avatars.githubusercontent.com/u/14184942?v=3","gravatar_id":"","url":"https://api.github.com/users/venksub","html_url":"https://github.com/venksub","followers_url":"https://api.github.com/users/venksub/followers","following_url":"https://api.github.com/users/venksub/following{/other_user}","gists_url":"https://api.github.com/users/venksub/gists{/gist_id}","starred_url":"https://api.github.com/users/venksub/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/venksub/subscriptions","organizations_url":"https://api.github.com/users/venksub/orgs","repos_url":"https://api.github.com/users/venksub/repos","events_url":"https://api.github.com/users/venksub/events{/privacy}","received_events_url":"https://api.github.com/users/venksub/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-11-11T21:50:24Z","updated_at":"2015-11-11T22:57:50Z","closed_at":null,"body":"If I expect a certain field to have a null value, how can I write a matching expression for it? I tried using stringValue(\"some_field\", null) but doesn't work."},"comment":{"url":"https://api.github.com/repos/DiUS/pact-jvm/issues/comments/155936191","html_url":"https://github.com/DiUS/pact-jvm/issues/183#issuecomment-155936191","issue_url":"https://api.github.com/repos/DiUS/pact-jvm/issues/183","id":155936191,"user":{"login":"uglyog","id":863666,"avatar_url":"https://avatars.githubusercontent.com/u/863666?v=3","gravatar_id":"","url":"https://api.github.com/users/uglyog","html_url":"https://github.com/uglyog","followers_url":"https://api.github.com/users/uglyog/followers","following_url":"https://api.github.com/users/uglyog/following{/other_user}","gists_url":"https://api.github.com/users/uglyog/gists{/gist_id}","starred_url":"https://api.github.com/users/uglyog/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/uglyog/subscriptions","organizations_url":"https://api.github.com/users/uglyog/orgs","repos_url":"https://api.github.com/users/uglyog/repos","events_url":"https://api.github.com/users/uglyog/events{/privacy}","received_events_url":"https://api.github.com/users/uglyog/received_events","type":"User","site_admin":false},"created_at":"2015-11-11T22:57:49Z","updated_at":"2015-11-11T22:57:49Z","body":"I'll look at why stringValue(\"some_field\", null) is not working, but I'll also add a nullValue method."}}