--- /dev/null	2015-09-16 15:19:59.000000000 -0700
+++ new/src/java.base/share/classes/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotInstalledCode.java	2015-09-16 15:19:59.000000000 -0700
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2011, 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.internal.jvmci.hotspot;
+
+import static jdk.internal.jvmci.hotspot.UnsafeAccess.UNSAFE;
+import jdk.internal.jvmci.code.InstalledCode;
+import jdk.internal.jvmci.inittimer.SuppressFBWarnings;
+import sun.misc.Unsafe;
+
+/**
+ * Implementation of {@link InstalledCode} for HotSpot.
+ */
+public abstract class HotSpotInstalledCode extends InstalledCode {
+
+    /**
+     * Total size of the code blob.
+     */
+    @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
+
+    /**
+     * Start address of the code.
+     */
+    @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
+
+    /**
+     * Size of the code.
+     */
+    @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
+
+    public HotSpotInstalledCode(String name) {
+        super(name);
+    }
+
+    /**
+     * @return the total size of this code blob
+     */
+    public int getSize() {
+        return size;
+    }
+
+    /**
+     * @return a copy of this code blob if it is {@linkplain #isValid() valid}, null otherwise.
+     */
+    public byte[] getBlob() {
+        if (!isValid()) {
+            return null;
+        }
+        byte[] blob = new byte[size];
+        UNSAFE.copyMemory(null, getAddress(), blob, Unsafe.ARRAY_BYTE_BASE_OFFSET, size);
+        return blob;
+    }
+
+    @Override
+    public abstract String toString();
+
+    @Override
+    public long getStart() {
+        return codeStart;
+    }
+
+    @Override
+    public long getCodeSize() {
+        return codeSize;
+    }
+
+    @Override
+    public byte[] getCode() {
+        if (!isValid()) {
+            return null;
+        }
+        byte[] code = new byte[codeSize];
+        UNSAFE.copyMemory(null, codeStart, code, Unsafe.ARRAY_BYTE_BASE_OFFSET, codeSize);
+        return code;
+    }
+}