--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/InstalledCode.java	Wed May 27 00:36:16 2015 +0200
@@ -0,0 +1,121 @@
+/*
+ * 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 com.oracle.jvmci.code;
+
+/**
+ * Represents a compiled instance of a method. It may have been invalidated or removed in the
+ * meantime.
+ */
+public class InstalledCode {
+
+    /**
+     * Raw address of this code blob.
+     */
+    private long address;
+
+    /**
+     * Counts how often the address field was reassigned.
+     */
+    private long version;
+
+    protected final String name;
+
+    public InstalledCode(String name) {
+        this.name = name;
+    }
+
+    public final void setAddress(long address) {
+        this.address = address;
+        version++;
+    }
+
+    /**
+     * @return the address of this code blob
+     */
+    public final long getAddress() {
+        return address;
+    }
+
+    /**
+     * @return the address of this code blob
+     */
+    public final long getVersion() {
+        return version;
+    }
+
+    /**
+     * Returns the name of this code blob.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Returns the start address of this installed code if it is {@linkplain #isValid() valid}, 0
+     * otherwise.
+     */
+    public long getStart() {
+        return 0;
+    }
+
+    /**
+     * Returns the number of instruction bytes for this code.
+     */
+    public long getCodeSize() {
+        return 0;
+    }
+
+    /**
+     * Returns a copy of this installed code if it is {@linkplain #isValid() valid}, null otherwise.
+     */
+    public byte[] getCode() {
+        return null;
+    }
+
+    /**
+     * @return true if the code represented by this object is still valid, false otherwise (may
+     *         happen due to deopt, etc.)
+     */
+    public boolean isValid() {
+        return address != 0;
+    }
+
+    /**
+     * Invalidates this installed code such that any subsequent invocation will throw an
+     * {@link InvalidInstalledCodeException}.
+     */
+    public void invalidate() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Executes the installed code with a variable number of arguments.
+     *
+     * @param args the array of object arguments
+     * @return the value returned by the executed code
+     */
+    @SuppressWarnings("unused")
+    public Object executeVarargs(Object... args) throws InvalidInstalledCodeException {
+        throw new UnsupportedOperationException();
+    }
+}