Jenkins-安装插件失败，出现“错误”；找不到请求目标的有效证书路径；

我正在使用Windows8个人笔记本电脑。JAVA\u HOME指向C:\Program Files\JAVA\jdk-9.0.1

我安装了最新的jenkins（适用于windows）。当我尝试安装插件时，它抛出错误

           sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid 
         certification path to requested target
        at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:145)
        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131)
        at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
        Caused: sun.security.validator.ValidatorException: PKIX path building failed
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
        at sun.security.validator.Validator.validate(Validator.java:260)
        at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1479)
        Caused: javax.net.ssl.SSLHandshakeException

通过谷歌搜索，我发现很多人都有同样的问题。有些问题通过安装“证书”得到解决 我不熟悉。不知道到哪里去找他们来获取更多的知识

多谢各位