Link against RMI native code when RMI is used

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

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+/*
+ * Copyright (c) 2023, 2023, 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.
+ */
+package com.oracle.svm.hosted.jdk;
+
+import org.graalvm.nativeimage.Platforms;
+import org.graalvm.nativeimage.impl.InternalPlatform;
+
+import com.oracle.svm.core.feature.AutomaticallyRegisteredFeature;
+import com.oracle.svm.core.feature.InternalFeature;
+import com.oracle.svm.core.jdk.JNIRegistrationUtil;
+import com.oracle.svm.core.jdk.NativeLibrarySupport;
+import com.oracle.svm.hosted.FeatureImpl;
+import com.oracle.svm.hosted.c.NativeLibraries;
+
+@Platforms({InternalPlatform.PLATFORM_JNI.class})
+@AutomaticallyRegisteredFeature
+public class JNIRegistrationRMI extends JNIRegistrationUtil implements InternalFeature {
+
+    private static final String STATIC_LIB = "rmi";
+    private static final String GC = "sun.rmi.transport.GC";
+    private static final String GC_LOADER = "sun.rmi.transport.GC$1";
+
+    @Override
+    public void beforeAnalysis(BeforeAnalysisAccess access) {
+        /*
+         * The default RMI class implementations trigger loading of the 'rmi' library in their
+         * static initializers on Java 11+. We force a class initialization rerun in order to ensure
+         * we pick up the loadLibrary call and properly link against the library.
+         */
+        rerunClassInit(access, GC, GC_LOADER);
+
+        access.registerReachabilityHandler(JNIRegistrationRMI::handleGCClassReachable, clazz(access, GC), clazz(access, GC_LOADER));
+    }
+
+    private static void handleGCClassReachable(DuringAnalysisAccess access) {
+        NativeLibrarySupport.singleton().preregisterUninitializedBuiltinLibrary(STATIC_LIB);
+
+        NativeLibraries nativeLibraries = ((FeatureImpl.DuringAnalysisAccessImpl) access).getNativeLibraries();
+        nativeLibraries.addStaticJniLibrary(STATIC_LIB);
+    }
+}