add README

Author: roberttoyonaga

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/jdk/JmxClientFeature.java

@@ -70,6 +70,9 @@ private static void configureJNI() {
      * </ul>
      */
     private static void configureReflection(BeforeAnalysisAccess access) {
+        RuntimeReflection.register(access.findClassByName("com.sun.jndi.url.rmi.rmiURLContextFactory"));
+        RuntimeReflection.register(access.findClassByName("sun.rmi.server.UnicastRef"));
+
         RuntimeReflection.register(access.findClassByName("com.sun.jmx.remote.protocol.rmi.ClientProvider"));
         RuntimeReflection.register(access.findClassByName("com.sun.jndi.url.rmi.rmiURLContextFactory").getConstructors());
         RuntimeReflection.register(access.findClassByName("sun.rmi.server.UnicastRef").getConstructors());

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/jdk/JmxServerFeature.java

@@ -83,7 +83,7 @@ private static void registerJMXAgentResources() {
                         "jdk.internal.agent.resources.agent");
 
         resourcesRegistry.addResourceBundles(ConfigurationCondition.alwaysTrue(),
-                        "sun.security.util.Resources"); // required for password auth
+                        "sun.security.util.resources.security"); // required for password auth
     }
 
     private static void configureProxy(BeforeAnalysisAccess access) {

substratevm/src/com.oracle.svm.test/src/com/oracle/svm/test/jmx/JmxTest.java

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2022, 2022, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2022, 2022, Red Hat Inc. All rights reserved.
+ * Copyright (c) 2022, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 2025, Red Hat Inc. 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
@@ -108,11 +108,7 @@ public static void checkForJFR() throws IOException {
 
         /*
          * The following are dummy SSL keystore and truststore files required for testing connection
-         * using SSL. The clientkeystore was used to create a client certificate
-         * (jmxremoteresources/client.cer) which was then imported into the servertruststore. The
-         * client key was created with the following properties: -alias clientkey -validity 99999
-         * -storepass clientpass -keypass clientpass -keyalg rsa (The validity is from March 28
-         * 2023).
+         * using SSL. See jmxremoteresources/README.md for more information.
          */
         System.setProperty(KEYSTORE_PROPERTY, JMX_REMOTE_RESOURCES + "/clientkeystore");
         System.setProperty(KEYSTORE_PASSWORD_PROPERTY, "clientpass");

substratevm/src/com.oracle.svm.test/src/com/oracle/svm/test/jmx/jmxremoteresources/README.md

@@ -0,0 +1,24 @@
+## Remote JMX SSL and Authentication Supporting Files
+In order for the remote JMX password authentication and SSL to work a few files need to be created. 
+
+### Password Authentication 
+Create the file `jmxremote.access`. In it add the line: `myrole readwrite`. This specifies a role with the read and write permissions. 
+
+Next, create the file `jmxremote.password`. In it add the line: `myrole MYP@SSWORD`. This specifies a password for the previously created role. This password will automatically be hashed and updated in the file once the first connection is made. No further action is needed.
+
+### SSL
+Make the client keystore and client key.
+```
+keytool -genkeypair -keystore clientkeystore -alias clientkey -validity 99999 -storepass clientpass -keypass clientpass -keyalg rsa
+```
+
+Create the client certificate file so that we can put in the server's truststore later.
+```
+keytool -exportcert -keystore clientkeystore -alias clientkey -storepass clientpass -file client.cer
+```
+
+Put the client's certificate in the server's truststore (also creating the truststore).
+```
+keytool -importcert -file client.cer -keystore servertruststore -storepass servertrustpass
+```
+

substratevm/src/com.oracle.svm.test/src/com/oracle/svm/test/jmx/jmxremoteresources/client.cer

@@ -3,4 +3,4 @@
 # with a clear text password or a new hashed password. If the new password is in clear,
 # it will be replaced with its hash when a new login attempt is made.
 
-myrole GfD4DqNr5DUGl/kAREAAInPST5FKFI5i8lRpkscwOLC/sf5U25M8zn5ppOJGOAE6cOMPrgy3o+9f2PyL2PkE7w== m4maFV8JvmL1kByz6gLLiWSdYgtb1ezEfPseDllMwnGmWFBT6jquuxqa9pqrSmpBdMGfxa9gYdCecffS29XSXQ== SHA3-512
+myrole SviFJQFExpUO9PA5zucaZSkdrPJHwpyCHMrVa8fRhP+LrD9QoKE9HXP1qSWntrbYUwnacGzUYs7c2ZoebZ1feQ== D87Gcz5VU9d+casZg6P/WHh9AQU0n08dKwm7EAA/P47pdgPA1CO+zZIP7Y54LxgRKh6MpsAsSFXpjjaXzKCHuA== SHA3-512