Merge

.hgtags

@@ -565,4 +565,5 @@ b034d2dee5fc93d42a81b65e58ce3f91e42586ff jdk-13+23
 22b3b7983adab54e318f75aeb94471f7a4429c1e jdk-14+0
 22b3b7983adab54e318f75aeb94471f7a4429c1e jdk-13+25
 2f4e214781a1d597ed36bf5a36f20928c6c82996 jdk-14+1
+0692b67f54621991ba7afbf23e55b788f3555e69 jdk-13+26
 43627549a488b7d0b4df8fad436e36233df89877 jdk-14+2

make/autoconf/bootcycle-spec.gmk.in

@@ -62,3 +62,7 @@ ifeq ($(OPENJDK_TARGET_CPU_BITS), 32)
 endif
 # The bootcycle JVM arguments may differ from the original boot jdk.
 JAVA_FLAGS_BIG := @BOOTCYCLE_JVM_ARGS_BIG@
+# Any CDS settings generated for the bootjdk are invalid in the bootcycle build.
+# By filtering out those JVM args, the bootcycle JVM will use its default
+# settings for CDS.
+JAVA_FLAGS := $(filter-out -XX:SharedArchiveFile% -Xshare%, $(JAVA_FLAGS))

src/hotspot/os/linux/perfMemory_linux.cpp

@@ -661,7 +661,7 @@ static int get_namespace_pid(int vmid) {
   if (fp) {
     int pid, nspid;
     int ret;
-    while (!feof(fp)) {
+    while (!feof(fp) && !ferror(fp)) {
       ret = fscanf(fp, "NSpid: %d %d", &pid, &nspid);
       if (ret == 1) {
         break;

src/hotspot/share/code/nmethod.cpp

@@ -1473,6 +1473,13 @@ oop nmethod::oop_at(int index) const {
   return NativeAccess<AS_NO_KEEPALIVE>::oop_load(oop_addr_at(index));
 }
 
+oop nmethod::oop_at_phantom(int index) const {
+  if (index == 0) {
+    return NULL;
+  }
+  return NativeAccess<ON_PHANTOM_OOP_REF>::oop_load(oop_addr_at(index));
+}
+
 //
 // Notify all classes this nmethod is dependent on that it is no
 // longer dependent. This should only be called in two situations.

src/hotspot/share/code/nmethod.hpp

@@ -392,6 +392,7 @@ class nmethod : public CompiledMethod {
   // Support for oops in scopes and relocs:
   // Note: index 0 is reserved for null.
   oop   oop_at(int index) const;
+  oop   oop_at_phantom(int index) const; // phantom reference
   oop*  oop_addr_at(int index) const {  // for GC
     // relocation indexes are biased by 1 (because 0 is reserved)
     assert(index > 0 && index <= oops_count(), "must be a valid non-zero index");

src/hotspot/share/jvmci/jvmciCompilerToVM.cpp

@@ -2416,7 +2416,7 @@ C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
         if (peerEnv->is_hotspot()) {
           // Only the mirror in the HotSpot heap is accessible
           // through JVMCINMethodData
-          oop nmethod_mirror = data->get_nmethod_mirror(nm);
+          oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
           if (nmethod_mirror != NULL) {
             result = HotSpotJVMCI::wrap(nmethod_mirror);
           }
@@ -2443,7 +2443,7 @@ C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
           if (data == NULL) {
             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
           }
-          if (data->get_nmethod_mirror(nm) != NULL) {
+          if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
           }
           oop nmethod_mirror = HotSpotJVMCI::resolve(result);

src/hotspot/share/jvmci/jvmciRuntime.cpp

@@ -700,11 +700,15 @@ void JVMCINMethodData::add_failed_speculation(nmethod* nm, jlong speculation) {
   FailedSpeculation::add_failed_speculation(nm, _failed_speculations, data, length);
 }
 
-oop JVMCINMethodData::get_nmethod_mirror(nmethod* nm) {
+oop JVMCINMethodData::get_nmethod_mirror(nmethod* nm, bool phantom_ref) {
   if (_nmethod_mirror_index == -1) {
     return NULL;
   }
-  return nm->oop_at(_nmethod_mirror_index);
+  if (phantom_ref) {
+    return nm->oop_at_phantom(_nmethod_mirror_index);
+  } else {
+    return nm->oop_at(_nmethod_mirror_index);
+  }
 }
 
 void JVMCINMethodData::set_nmethod_mirror(nmethod* nm, oop new_mirror) {
@@ -728,7 +732,7 @@ void JVMCINMethodData::clear_nmethod_mirror(nmethod* nm) {
 }
 
 void JVMCINMethodData::invalidate_nmethod_mirror(nmethod* nm) {
-  oop nmethod_mirror = get_nmethod_mirror(nm);
+  oop nmethod_mirror = get_nmethod_mirror(nm, /* phantom_ref */ true);
   if (nmethod_mirror == NULL) {
     return;
   }
@@ -1530,7 +1534,7 @@ JVMCI::CodeInstallResult JVMCIRuntime::register_method(JVMCIEnv* JVMCIENV,
         JVMCINMethodData* data = nm->jvmci_nmethod_data();
         assert(data != NULL, "must be");
         if (install_default) {
-          assert(!nmethod_mirror.is_hotspot() || data->get_nmethod_mirror(nm) == NULL, "must be");
+          assert(!nmethod_mirror.is_hotspot() || data->get_nmethod_mirror(nm, /* phantom_ref */ false) == NULL, "must be");
           if (entry_bci == InvocationEntryBci) {
             if (TieredCompilation) {
               // If there is an old version we're done with it
@@ -1565,7 +1569,7 @@ JVMCI::CodeInstallResult JVMCIRuntime::register_method(JVMCIEnv* JVMCIENV,
             InstanceKlass::cast(method->method_holder())->add_osr_nmethod(nm);
           }
         } else {
-          assert(!nmethod_mirror.is_hotspot() || data->get_nmethod_mirror(nm) == HotSpotJVMCI::resolve(nmethod_mirror), "must be");
+          assert(!nmethod_mirror.is_hotspot() || data->get_nmethod_mirror(nm, /* phantom_ref */ false) == HotSpotJVMCI::resolve(nmethod_mirror), "must be");
         }
         nm->make_in_use();
       }

src/hotspot/share/jvmci/jvmciRuntime.hpp

@@ -74,7 +74,7 @@ public:
   void invalidate_nmethod_mirror(nmethod* nm);
 
   // Gets the mirror from nm's oops table.
-  oop get_nmethod_mirror(nmethod* nm);
+  oop get_nmethod_mirror(nmethod* nm, bool phantom_ref);
 
   // Sets the mirror in nm's oops table.
   void set_nmethod_mirror(nmethod* nm, oop mirror);

src/java.base/share/classes/sun/security/ssl/SignatureScheme.java

@@ -39,6 +39,7 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Set;
 import sun.security.ssl.NamedGroup.NamedGroupType;
+import sun.security.ssl.SupportedGroupsExtension.SupportedGroups;
 import sun.security.ssl.X509Authentication.X509Possession;
 import sun.security.util.KeyUtil;
 import sun.security.util.SignatureUtil;
@@ -440,6 +441,39 @@ enum SignatureScheme {
                             ss.namedGroup == NamedGroup.valueOf(params)) {
                         return ss;
                     }
+
+                    if (SSLLogger.isOn &&
+                            SSLLogger.isOn("ssl,handshake,verbose")) {
+                        SSLLogger.finest(
+                            "Ignore the signature algorithm (" + ss +
+                            "), unsupported EC parameter spec: " + params);
+                    }
+                } else if ("EC".equals(ss.keyAlgorithm)) {
+                    // Must be a legacy signature algorithm, which does not
+                    // specify the associated named groups.  The connection
+                    // cannot be established if the peer cannot recognize
+                    // the named group used for the signature.  RFC 8446
+                    // does not define countermeasures for the corner cases.
+                    // In order to mitigate the impact, we choose to check
+                    // against the local supported named groups.  The risk
+                    // should be minimal as applications should not use
+                    // unsupported named groups for its certificates.
+                    ECParameterSpec params =
+                            x509Possession.getECParameterSpec();
+                    if (params != null) {
+                        NamedGroup keyGroup = NamedGroup.valueOf(params);
+                        if (keyGroup != null &&
+                                SupportedGroups.isSupported(keyGroup)) {
+                            return ss;
+                        }
+                    }
+
+                    if (SSLLogger.isOn &&
+                            SSLLogger.isOn("ssl,handshake,verbose")) {
+                        SSLLogger.finest(
+                            "Ignore the legacy signature algorithm (" + ss +
+                            "), unsupported EC parameter spec: " + params);
+                    }
                 } else {
                     return ss;
                 }

src/java.base/share/classes/sun/security/ssl/X509Authentication.java

@@ -69,7 +69,7 @@ enum X509Authentication implements SSLAuthentication {
     final String keyType;
     final SSLPossessionGenerator possessionGenerator;
 
-    X509Authentication(String keyType,
+    private X509Authentication(String keyType,
             SSLPossessionGenerator possessionGenerator) {
         this.keyType = keyType;
         this.possessionGenerator = possessionGenerator;
@@ -326,10 +326,12 @@ enum X509Authentication implements SSLAuthentication {
                 return null;
             }
 
-            // For ECC certs, check whether we support the EC domain
+            // For TLS 1.2 and prior versions, the public key of a EC cert
-            // parameters.  If the client sent a SupportedEllipticCurves
+            // MUST use a curve and point format supported by the client.
-            // ClientHello extension, check against that too.
+            // But for TLS 1.3, signature algorithms are negotiated
-            if (keyType.equals("EC")) {
+            // independently via the "signature_algorithms" extension.
+            if (!shc.negotiatedProtocol.useTLS13PlusSpec() &&
+                    keyType.equals("EC")) {
                 if (!(serverPublicKey instanceof ECPublicKey)) {
                     if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
                         SSLLogger.warning(serverAlias +
@@ -339,8 +341,9 @@ enum X509Authentication implements SSLAuthentication {
                 }
 
                 // For ECC certs, check whether we support the EC domain
-                // parameters. If the client sent a SupportedEllipticCurves
+                // parameters.  If the client sent a supported_groups
-                // ClientHello extension, check against that too.
+                // ClientHello extension, check against that too for
+                // TLS 1.2 and prior versions.
                 ECParameterSpec params =
                         ((ECPublicKey)serverPublicKey).getParams();
                 NamedGroup namedGroup = NamedGroup.valueOf(params);

src/jdk.compiler/share/classes/com/sun/tools/javac/resources/javac.properties

@@ -80,11 +80,11 @@ javac.opt.encoding=\
 javac.opt.profile=\
     Check that API used is available in the specified profile
 javac.opt.target=\
-    Generate class files for specific VM version. Supported versions: {0}
+    Generate class files suitable for the specified Java SE release. Supported releases: {0}
 javac.opt.release=\
-    Compile for a specific release. Supported releases: {0}
+    Compile for the specified Java SE release. Supported releases: {0}
 javac.opt.source=\
-    Provide source compatibility with specified release. Supported releases: {0}
+    Provide source compatibility with the specified Java SE release. Supported releases: {0}
 javac.opt.Werror=\
     Terminate compilation if warnings occur
 javac.opt.A=\

test/hotspot/jtreg/ProblemList-aot.txt

@@ -0,0 +1,74 @@
+#
+# Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+#############################################################################
+#
+# List of quarantined tests for testing with AOT.
+#
+#############################################################################
+
+serviceability/sa/CDSJMapClstats.java                   8216181   generic-all
+serviceability/sa/ClhsdbAttach.java                     8216181   generic-all
+serviceability/sa/ClhsdbCDSCore.java                    8216181   generic-all
+serviceability/sa/ClhsdbCDSJstackPrintAll.java          8216181   generic-all
+serviceability/sa/ClhsdbField.java                      8216181   generic-all
+serviceability/sa/ClhsdbFindPC.java                     8216181   generic-all
+serviceability/sa/ClhsdbFlags.java                      8216181   generic-all
+serviceability/sa/ClhsdbInspect.java                    8216181   generic-all
+serviceability/sa/ClhsdbJdis.java                       8216181   generic-all
+serviceability/sa/ClhsdbJhisto.java                     8216181   generic-all
+serviceability/sa/ClhsdbJstack.java                     8216181   generic-all
+serviceability/sa/ClhsdbLongConstant.java               8216181   generic-all
+serviceability/sa/ClhsdbPmap.java                       8216181   generic-all
+serviceability/sa/ClhsdbPrintAll.java                   8216181   generic-all
+serviceability/sa/ClhsdbPrintAs.java                    8216181   generic-all
+serviceability/sa/ClhsdbPrintStatics.java               8216181   generic-all
+serviceability/sa/ClhsdbPstack.java                     8216181   generic-all
+serviceability/sa/ClhsdbRegionDetailsScanOopsForG1.java 8216181   generic-all
+serviceability/sa/ClhsdbScanOops.java                   8216181   generic-all
+serviceability/sa/ClhsdbSource.java                     8216181   generic-all
+serviceability/sa/ClhsdbThread.java                     8216181   generic-all
+serviceability/sa/ClhsdbVmStructsDump.java              8216181   generic-all
+serviceability/sa/ClhsdbWhere.java                      8216181   generic-all
+serviceability/sa/DeadlockDetectionTest.java            8216181   generic-all
+serviceability/sa/JhsdbThreadInfoTest.java              8216181   generic-all
+serviceability/sa/jmap-hprof/JMapHProfLargeHeapTest.java 8216181   generic-all
+serviceability/sa/sadebugd/SADebugDTest.java            8216181   generic-all
+serviceability/sa/TestClassDump.java                    8216181   generic-all
+serviceability/sa/TestClhsdbJstackLock.java             8216181   generic-all
+serviceability/sa/TestCpoolForInvokeDynamic.java        8216181   generic-all
+serviceability/sa/TestDefaultMethods.java               8216181   generic-all
+serviceability/sa/TestG1HeapRegion.java                 8216181   generic-all
+serviceability/sa/TestHeapDumpForInvokeDynamic.java     8216181   generic-all
+serviceability/sa/TestHeapDumpForLargeArray.java        8216181   generic-all
+serviceability/sa/TestInstanceKlassSizeForInterface.java 8216181   generic-all
+serviceability/sa/TestInstanceKlassSize.java            8216181   generic-all
+serviceability/sa/TestIntConstant.java                  8216181   generic-all
+serviceability/sa/TestJhsdbJstackLock.java              8216181   generic-all
+serviceability/sa/TestJhsdbJstackMixed.java             8216181   generic-all
+serviceability/sa/TestJmapCore.java                     8216181   generic-all
+serviceability/sa/TestJmapCoreMetaspace.java            8216181   generic-all
+serviceability/sa/TestPrintMdo.java                     8216181   generic-all
+serviceability/sa/TestRevPtrsForInvokeDynamic.java      8216181   generic-all
+serviceability/sa/TestType.java                         8216181   generic-all
+serviceability/sa/TestUniverse.java                     8216181   generic-all

test/jdk/sun/security/ssl/SignatureScheme/Tls13NamedGroups.java

@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+//
+// SunJSSE does not support dynamic system properties, no way to re-use
+// system properties in samevm/agentvm mode.
+//
+
+/*
+ * @test
+ * @bug 8225766
+ * @summary Curve in certificate should not affect signature scheme
+ *          when using TLSv1.3
+ * @library /javax/net/ssl/templates
+ * @run main/othervm Tls13NamedGroups
+ */
+
+import java.net.*;
+import java.io.*;
+import javax.net.ssl.*;
+import java.security.*;
+import java.security.cert.*;
+import java.security.spec.*;
+import java.security.interfaces.*;
+import java.util.Base64;
+
+public class Tls13NamedGroups extends SSLSocketTemplate {
+
+    public static void main(String[] args) throws Exception {
+        // Limit the supported named group to secp521r1.
+        System.setProperty("jdk.tls.namedGroups", "secp521r1");
+
+        new Tls13NamedGroups().run();
+    }
+
+    @Override
+    protected SSLContext createServerSSLContext() throws Exception {
+        return generateSSLContext();
+    }
+
+    @Override
+    protected void configureServerSocket(SSLServerSocket socket) {
+        socket.setNeedClientAuth(true);
+    }
+
+    @Override
+    protected SSLContext createClientSSLContext() throws Exception {
+        return generateSSLContext();
+    }
+
+    /*
+     * =============================================================
+     * The remainder is just support stuff
+     */
+
+    // Certificates and key used in the test.
+    //
+    // Trusted Certificate.
+    static String trustedCertStr =
+        // SHA256withECDSA, curve prime256v1
+        // Validity
+        //     Not Before: May 22 07:18:16 2018 GMT
+        //     Not After : May 17 07:18:16 2038 GMT
+        // Subject Key Identifier:
+        //     60:CF:BD:73:FF:FA:1A:30:D2:A4:EC:D3:49:71:46:EF:1A:35:A0:86
+        "-----BEGIN CERTIFICATE-----\n" +
+        "MIIBvjCCAWOgAwIBAgIJAIvFG6GbTroCMAoGCCqGSM49BAMCMDsxCzAJBgNVBAYT\n" +
+        "AlVTMQ0wCwYDVQQKDARKYXZhMR0wGwYDVQQLDBRTdW5KU1NFIFRlc3QgU2VyaXZj\n" +
+        "ZTAeFw0xODA1MjIwNzE4MTZaFw0zODA1MTcwNzE4MTZaMDsxCzAJBgNVBAYTAlVT\n" +
+        "MQ0wCwYDVQQKDARKYXZhMR0wGwYDVQQLDBRTdW5KU1NFIFRlc3QgU2VyaXZjZTBZ\n" +
+        "MBMGByqGSM49AgEGCCqGSM49AwEHA0IABBz1WeVb6gM2mh85z3QlvaB/l11b5h0v\n" +
+        "LIzmkC3DKlVukZT+ltH2Eq1oEkpXuf7QmbM0ibrUgtjsWH3mULfmcWmjUDBOMB0G\n" +
+        "A1UdDgQWBBRgz71z//oaMNKk7NNJcUbvGjWghjAfBgNVHSMEGDAWgBRgz71z//oa\n" +
+        "MNKk7NNJcUbvGjWghjAMBgNVHRMEBTADAQH/MAoGCCqGSM49BAMCA0kAMEYCIQCG\n" +
+        "6wluh1r2/T6L31mZXRKf9JxeSf9pIzoLj+8xQeUChQIhAJ09wAi1kV8yePLh2FD9\n" +
+        "2YEHlSQUAbwwqCDEVB5KxaqP\n" +
+        "-----END CERTIFICATE-----";
+        // -----BEGIN PRIVATE KEY-----
+        // MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQg/HcHdoLJCdq3haVd
+        // XZTSKP00YzM3xX97l98vGL/RI1KhRANCAAQc9VnlW+oDNpofOc90Jb2gf5ddW+Yd
+        // LyyM5pAtwypVbpGU/pbR9hKtaBJKV7n+0JmzNIm61ILY7Fh95lC35nFp
+        // -----END PRIVATE KEY-----
+
+    // End entity certificate.
+    static String targetCertStr =
+        // SHA256withECDSA, curve prime256v1
+        // Validity
+        //     Not Before: May 22 07:18:16 2018 GMT
+        //     Not After : May 17 07:18:16 2038 GMT
+        // Authority Key Identifier:
+        //     60:CF:BD:73:FF:FA:1A:30:D2:A4:EC:D3:49:71:46:EF:1A:35:A0:86
+        "-----BEGIN CERTIFICATE-----\n" +
+        "MIIBqjCCAVCgAwIBAgIJAPLY8qZjgNRAMAoGCCqGSM49BAMCMDsxCzAJBgNVBAYT\n" +
+        "AlVTMQ0wCwYDVQQKDARKYXZhMR0wGwYDVQQLDBRTdW5KU1NFIFRlc3QgU2VyaXZj\n" +
+        "ZTAeFw0xODA1MjIwNzE4MTZaFw0zODA1MTcwNzE4MTZaMFUxCzAJBgNVBAYTAlVT\n" +
+        "MQ0wCwYDVQQKDARKYXZhMR0wGwYDVQQLDBRTdW5KU1NFIFRlc3QgU2VyaXZjZTEY\n" +
+        "MBYGA1UEAwwPUmVncmVzc2lvbiBUZXN0MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcD\n" +
+        "QgAEb+9n05qfXnfHUb0xtQJNS4JeSi6IjOfW5NqchvKnfJey9VkJzR7QHLuOESdf\n" +
+        "xlR7q8YIWgih3iWLGfB+wxHiOqMjMCEwHwYDVR0jBBgwFoAUYM+9c//6GjDSpOzT\n" +
+        "SXFG7xo1oIYwCgYIKoZIzj0EAwIDSAAwRQIgWpRegWXMheiD3qFdd8kMdrkLxRbq\n" +
+        "1zj8nQMEwFTUjjQCIQDRIrAjZX+YXHN9b0SoWWLPUq0HmiFIi8RwMnO//wJIGQ==\n" +
+        "-----END CERTIFICATE-----";
+
+    // Private key in the format of PKCS#8.
+    static String targetPrivateKey =
+        //
+        // EC private key related to cert endEntityCertStrs[0].
+        //
+        "MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgn5K03bpTLjEtFQRa\n" +
+        "JUtx22gtmGEvvSUSQdimhGthdtihRANCAARv72fTmp9ed8dRvTG1Ak1Lgl5KLoiM\n" +
+        "59bk2pyG8qd8l7L1WQnNHtAcu44RJ1/GVHurxghaCKHeJYsZ8H7DEeI6";
+
+    static char passphrase[] = "passphrase".toCharArray();
+
+    // Create the SSLContext instance.
+    private static SSLContext generateSSLContext() throws Exception {
+
+        // generate certificate from cert string
+        CertificateFactory cf = CertificateFactory.getInstance("X.509");
+
+        // create a key store
+        KeyStore ks = KeyStore.getInstance("JKS");
+        ks.load(null, null);
+
+        // import the trused cert
+        X509Certificate trusedCert = null;
+        ByteArrayInputStream is =
+                new ByteArrayInputStream(trustedCertStr.getBytes());
+        trusedCert = (X509Certificate)cf.generateCertificate(is);
+        is.close();
+
+        ks.setCertificateEntry("Trusted EC Signer", trusedCert);
+
+        // generate the private key.
+        PKCS8EncodedKeySpec priKeySpec = new PKCS8EncodedKeySpec(
+                            Base64.getMimeDecoder().decode(targetPrivateKey));
+        KeyFactory kf = KeyFactory.getInstance("EC");
+        ECPrivateKey priKey =
+                (ECPrivateKey)kf.generatePrivate(priKeySpec);
+
+        // generate certificate chain
+        is = new ByteArrayInputStream(targetCertStr.getBytes());
+        X509Certificate keyCert = (X509Certificate)cf.generateCertificate(is);
+        is.close();
+
+        X509Certificate[] chain = new X509Certificate[2];
+        chain[0] = keyCert;
+        chain[1] = trusedCert;
+
+        // import the key entry and the chain
+        ks.setKeyEntry("TheKey", priKey, passphrase, chain);
+
+        // create SSL context
+        TrustManagerFactory tmf = TrustManagerFactory.getInstance("PKIX");
+        tmf.init(ks);
+
+        KeyManagerFactory kmf = KeyManagerFactory.getInstance("NewSunX509");
+        kmf.init(ks, passphrase);
+
+        SSLContext ctx = SSLContext.getInstance("TLSv1.3");
+        ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
+        ks = null;
+
+        return ctx;
+    }
+}