Jetty 升級(jí)到后，我沒有在傳入的客戶端請(qǐng)求中獲得 X509 證書9.4.19.v20190610certifcates = (X509Certificate[])request.getAttribute("javax.servlet.request.X509Certificate");這里的證書是空的。雖然他們是 Jetty 版本9.4.11.v20180605我的客戶端程序：private static String loginWithCertificate(String aEndPointURL) {    String line = "";    try {        final String CERT_ALIAS = "employee1";        String CERT_PASSWORD = "changeit";        KeyStore identityKeyStore = KeyStore.getInstance("jks");        FileInputStream identityKeyStoreFile = new FileInputStream(new File(ResourceUtils.getFile("./stores/client1.jks").getAbsolutePath()));        identityKeyStore.load(identityKeyStoreFile, CERT_PASSWORD.toCharArray());        KeyStore trustKeyStore = KeyStore.getInstance("jks");        FileInputStream trustKeyStoreFile = new FileInputStream(new File(ResourceUtils.getFile("./stores/truststore1.jks").getAbsolutePath()));        trustKeyStore.load(trustKeyStoreFile, CERT_PASSWORD.toCharArray());        SSLContext sslContext = SSLContexts.custom()                // load identity keystore                .loadKeyMaterial(identityKeyStore, CERT_PASSWORD.toCharArray(), new PrivateKeyStrategy() {                    @Override                    public String chooseAlias(Map<String, PrivateKeyDetails> aliases, Socket socket) {                        return CERT_ALIAS;                    }                })                // load trust keystore                .loadTrustMaterial(trustKeyStore, null).build();        SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext,                new String[] { "TLSv1.2", "TLSv1.1", "TLSv1"  }, null, SSLConnectionSocketFactory.STRICT_HOSTNAME_VERIFIER);        CloseableHttpClient client = HttpClients.custom().setSSLSocketFactory(sslConnectionSocketFactory).build();        }}