Set jdk.tls.namedGroups property through RestrictedSecurity profiles

The `jdk.tls.namedGroups` system property can now be set through
a RestrictedSecurity profile, instead of being specified explicitly
through the command line.

The TestProperties.java test was updated to verify this new feature.

Signed-off-by: Kostas Tsiounis <kostas.tsiounis@ibm.com>

Author: KostasTsiounis

closed/src/java.base/share/classes/openj9/internal/security/RestrictedSecurity.java

@@ -655,6 +655,17 @@ private static void setProperties(Properties props) {
             // SSL property "javax.net.ssl.keyStore" set at the JVM level via system properties.
             System.setProperty("javax.net.ssl.keyStore", keyStore);
         }
+        String jdkTlsNamedGroups = restricts.jdkTlsNamedGroups;
+        if (!isNullOrBlank(jdkTlsNamedGroups)) {
+            String namedGroups = System.getProperty("jdk.tls.namedGroups");
+            if (namedGroups == null) {
+                // TLS property "jdk.tls.namedGroups" set at the JVM level via system properties.
+                System.setProperty("jdk.tls.namedGroups", jdkTlsNamedGroups);
+            } else {
+                printStackTraceAndExit("System property jdk.tls.namedGroups cannot be set"
+                        + " when defined in a RestrictedSecurity profile");
+            }
+        }
     }
 
     /**
@@ -800,6 +811,7 @@ private static final class RestrictedSecurityProperties {
         private final String jdkTlsDisabledAlgorithms;
         private final String jdkTlsEphemeralDHKeySize;
         private final String jdkTlsLegacyAlgorithms;
+        private final String jdkTlsNamedGroups;
         private final String jdkCertpathDisabledAlgorithms;
         private final String jdkSecurityLegacyAlgorithms;
         private final String keyStoreType;
@@ -834,6 +846,7 @@ private RestrictedSecurityProperties(String profileID, ProfileParser parser) {
             this.jdkTlsDisabledAlgorithms = parser.getProperty("jdkTlsDisabledAlgorithms");
             this.jdkTlsEphemeralDHKeySize = parser.getProperty("jdkTlsEphemeralDHKeySize");
             this.jdkTlsLegacyAlgorithms = parser.getProperty("jdkTlsLegacyAlgorithms");
+            this.jdkTlsNamedGroups = parser.getProperty("jdkTlsNamedGroups");
             this.jdkCertpathDisabledAlgorithms = parser.getProperty("jdkCertpathDisabledAlgorithms");
             this.jdkSecurityLegacyAlgorithms = parser.getProperty("jdkSecurityLegacyAlgorithms");
             this.keyStoreType = parser.getProperty("keyStoreType");
@@ -1128,6 +1141,7 @@ private void listUsedProfile() {
             printProperty(profileID + ".tls.disabledAlgorithms: ", jdkTlsDisabledAlgorithms);
             printProperty(profileID + ".tls.ephemeralDHKeySize: ", jdkTlsEphemeralDHKeySize);
             printProperty(profileID + ".tls.legacyAlgorithms: ", jdkTlsLegacyAlgorithms);
+            printProperty(profileID + ".tls.namedGroups: ", jdkTlsNamedGroups);
             printProperty(profileID + ".jce.certpath.disabledAlgorithms: ", jdkCertpathDisabledAlgorithms);
             printProperty(profileID + ".jce.legacyAlgorithms: ", jdkSecurityLegacyAlgorithms);
             System.out.println();
@@ -1579,6 +1593,8 @@ private void loadProperties(String profileID, List<String> allInfo) {
                     profileID + ".tls.ephemeralDHKeySize", allInfo);
             setProperty("jdkTlsLegacyAlgorithms",
                     profileID + ".tls.legacyAlgorithms", allInfo);
+            setProperty("jdkTlsNamedGroups",
+                    profileID + ".tls.namedGroups", allInfo);
             setProperty("jdkCertpathDisabledAlgorithms",
                     profileID + ".jce.certpath.disabledAlgorithms", allInfo);
             setProperty("jdkSecurityLegacyAlgorithms",

closed/test/jdk/openj9/internal/security/TestProperties.java

@@ -1,6 +1,6 @@
 /*
  * ===========================================================================
- * (c) Copyright IBM Corp. 2024, 2025 All Rights Reserved
+ * (c) Copyright IBM Corp. 2024, 2026 All Rights Reserved
  * ===========================================================================
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -202,6 +202,21 @@ private static Stream<Arguments> patternMatches_propertiesList() {
         return tests.build();
     }
 
+    private static Stream<Arguments> patternMatches_systemProperties() {
+        return Stream.of(
+                // 1 - Test property - base profile with javax.net.ssl.keyStore loads successfully.
+                Arguments.of("TestBase.Version",
+                        System.getProperty("test.src") + "/property-java.security",
+                        "javax\\.net\\.ssl\\.keyStore: NONE",
+                        0),
+                // 2 - Test property - base profile with jdk.tls.namedGroups loads successfully.
+                Arguments.of("TestBase.Version",
+                        System.getProperty("test.src") + "/property-java.security",
+                        "jdk\\.tls\\.namedGroups: secp256r1",
+                        0)
+        );
+    }
+
     @ParameterizedTest
     @MethodSource("patternMatches_expectedExitValue0")
     public void shouldContain_expectedExitValue0(String customprofile, String securityPropertyFile, String expected) throws Exception {
@@ -241,6 +256,19 @@ public void shouldContain_propertiesList(String customprofile, String securityPr
         outputAnalyzer.shouldHaveExitValue(exitValue).shouldMatch(expected);
     }
 
+    @ParameterizedTest
+    @MethodSource("patternMatches_systemProperties")
+    public void shouldContain_systemProperties(String customprofile, String securityPropertyFile, String expected, int exitValue) throws Exception {
+        OutputAnalyzer outputAnalyzer = ProcessTools.executeTestJava(
+                "-Dsemeru.fips=true",
+                "-Dsemeru.customprofile=" + customprofile,
+                "-Djava.security.properties=" + securityPropertyFile,
+                "TestProperties"
+        );
+        outputAnalyzer.reportDiagnosticSummary();
+        outputAnalyzer.shouldHaveExitValue(exitValue).shouldMatch(expected);
+    }
+
     private static boolean isProviderPresent(String providerName) {
         for (Provider provider : Security.getProviders()) {
             if (provider.getName().equalsIgnoreCase(providerName)) {
@@ -250,13 +278,28 @@ private static boolean isProviderPresent(String providerName) {
         return false;
     }
 
+    private static void testSystemProperties() {
+        // Test javax.net.ssl.keyStore system property.
+        String keyStore = System.getProperty("javax.net.ssl.keyStore");
+        if (keyStore != null) {
+            System.out.println("javax.net.ssl.keyStore: " + keyStore);
+        }
+
+        // Test jdk.tls.namedGroups system property.
+        String namedGroups = System.getProperty("jdk.tls.namedGroups");
+        if (namedGroups != null) {
+            System.out.println("jdk.tls.namedGroups: " + namedGroups);
+        }
+    }
+
     public static void main(String[] args) {
         // Something to trigger "properties" debug output.
         try {
             for (Provider provider : Security.getProviders()) {
                 System.out.println("Provider Name: " + provider.getName());
                 System.out.println("Provider Version: " + provider.getVersionStr());
             }
+            testSystemProperties();
         } catch (Exception e) {
             System.out.println(e);
         }

closed/test/jdk/openj9/internal/security/property-java.security

@@ -21,13 +21,14 @@
 RestrictedSecurity.TestBase.Version.desc.name = Test Base Profile
 RestrictedSecurity.TestBase.Version.desc.default = false
 RestrictedSecurity.TestBase.Version.desc.fips = true
-RestrictedSecurity.TestBase.Version.desc.hash = SHA256:21cacdfdca721783808e74798d7fc8f17f5b5ae583fd8e175549db9bfceb9983
+RestrictedSecurity.TestBase.Version.desc.hash = SHA256:57416e31b0d2712800afb73841ee7dd0c8d98fc50d7ff60132ed8cb3a41be958
 RestrictedSecurity.TestBase.Version.fips.mode = 140-3
 
 RestrictedSecurity.TestBase.Version.tls.disabledNamedCurves =
 RestrictedSecurity.TestBase.Version.tls.disabledAlgorithms =
 RestrictedSecurity.TestBase.Version.tls.ephemeralDHKeySize =
 RestrictedSecurity.TestBase.Version.tls.legacyAlgorithms =
+RestrictedSecurity.TestBase.Version.tls.namedGroups = secp256r1
 
 RestrictedSecurity.TestBase.Version.jce.certpath.disabledAlgorithms =
 RestrictedSecurity.TestBase.Version.jce.legacyAlgorithms =

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

@@ -23,6 +23,11 @@
  * questions.
  */
 
+/*
+ * ===========================================================================
+ * (c) Copyright IBM Corp. 2026, 2026 All Rights Reserved
+ * ===========================================================================
+ */
 package sun.security.ssl;
 
 import java.io.IOException;
@@ -163,6 +168,10 @@ static class SupportedGroups {
         static final NamedGroup[] supportedNamedGroups;
 
         static {
+            // RestrictedSecurity must be given an opportunity to set
+            // jdk.tls.namedGroups based on the selected profile, if applicable.
+            NamedGroup.SECP256_R1.ordinal();
+
             // The value of the System Property defines a list of enabled named
             // groups in preference order, separated with comma.  For example:
             //