--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/services/HotSpotVMEventListener.java	Thu Apr 28 15:16:47 2016 +0200
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2015, 2016, 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.
+ */
+package jdk.vm.ci.hotspot.services;
+
+import jdk.vm.ci.code.CompiledCode;
+import jdk.vm.ci.code.InstalledCode;
+import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;
+import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
+import jdk.vm.ci.meta.JVMCIMetaAccessContext;
+import jdk.vm.ci.meta.ResolvedJavaType;
+
+/**
+ * Service-provider class for responding to VM events and for creating
+ * {@link JVMCIMetaAccessContext}s.
+ */
+public abstract class HotSpotVMEventListener {
+
+    private static Void checkPermission() {
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null)
+            sm.checkPermission(new RuntimePermission("jvmci"));
+        return null;
+    }
+
+    @SuppressWarnings("unused")
+    HotSpotVMEventListener(Void ignore) {
+    }
+
+    /**
+     * Initializes a new instance of this class.
+     *
+     * @throws SecurityException if a security manager has been installed and it denies
+     *             {@code RuntimePermission("jvmci")}
+     */
+    protected HotSpotVMEventListener() {
+        this(checkPermission());
+    }
+
+    /**
+     * Notifies this client that the VM is shutting down.
+     */
+    public void notifyShutdown() {
+    }
+
+    /**
+     * Notify on successful install into the code cache.
+     *
+     * @param hotSpotCodeCacheProvider
+     * @param installedCode
+     * @param compiledCode
+     */
+    public void notifyInstall(HotSpotCodeCacheProvider hotSpotCodeCacheProvider, InstalledCode installedCode, CompiledCode compiledCode) {
+    }
+
+    /**
+     * Create a custom {@link JVMCIMetaAccessContext} to be used for managing the lifetime of loaded
+     * metadata. It a custom one isn't created then the default implementation will be a single
+     * context with globally shared instances of {@link ResolvedJavaType} that are never released.
+     *
+     * @param runtime the runtime instance that will use the returned context
+     * @return a custom context or null
+     */
+    public JVMCIMetaAccessContext createMetaAccessContext(HotSpotJVMCIRuntime runtime) {
+        return null;
+    }
+}