jenkins插件管理报错There were errors checking the update sites解决

插件管理页面提示：There were errors checking the update sites: SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

进入插件管理->Advanced,修改Update Site的URL，路径为“http://updates.jenkins.io/update-center.json”，修改完成，submit，然后checknow。问题解决。