即使在将github证书添加到%java_HOME%之后，java SSLHandshakeException仍然存在异常

Question

我已经按照https://github.com/escline/InstallCert上的所有说明进行了操作

主方法第一次起作用，但当我第二次启动主方法时，它又开始抛出同样的错误：

Exception in thread "main" org.kohsuke.github.HttpException: Server returned HTTP response code: -1, message: 'null' for URL: https://api.github.com/user
    at org.kohsuke.github.Requester.parse(Requester.java:840)
    at org.kohsuke.github.Requester.parse(Requester.java:782)
    at org.kohsuke.github.Requester._to(Requester.java:393)
    at org.kohsuke.github.Requester.to(Requester.java:353)
    at org.kohsuke.github.GitHub.getMyself(GitHub.java:547)
    at org.kohsuke.github.GitHub.<init>(GitHub.java:168)
    at org.kohsuke.github.GitHubBuilder.build(GitHubBuilder.java:361)
    at org.kohsuke.github.GitHub.connectUsingOAuth(GitHub.java:300)
    at com.controller.TestMain.main(TestMain.java:29)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1946)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:316)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:310)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1640)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:223)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1037)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:965)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1064)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1570)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:352)
    at org.kohsuke.github.Requester.parse(Requester.java:790)
    ... 8 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:450)
    at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:317)
    at sun.security.validator.Validator.validate(Validator.java:262)
    at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:330)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:227)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1622)
    ... 22 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:445)
    ... 28 more
Disconnected from the target VM, address: '127.0.0.1:50330', transport: 'socket'

我还检查了这个命令keytool -list -keystore "%JAVA_HOME%/jre/lib/security/cacerts"

我可以看到github。com，证书已安装。我还需要做什么