--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Profile.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2002, 2017, 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.sun.tools.javac.jvm;
+
+import com.sun.tools.javac.util.Context;
+import com.sun.tools.javac.util.Options;
+import java.util.EnumSet;
+import java.util.Set;
+
+import static com.sun.tools.javac.main.Option.PROFILE;
+
+/** The target profile.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own risk.
+ *  This code and its internal interfaces are subject to change or
+ *  deletion without notice.</b>
+ */
+public enum Profile {
+    COMPACT1("compact1", 1, Target.JDK1_8, Target.JDK1_9, Target.JDK1_10),
+    COMPACT2("compact2", 2, Target.JDK1_8, Target.JDK1_9, Target.JDK1_10),
+    COMPACT3("compact3", 3, Target.JDK1_8, Target.JDK1_9, Target.JDK1_10),
+
+    DEFAULT {
+        @Override
+        public boolean isValid(Target t) {
+            return true;
+        }
+    };
+
+    private static final Context.Key<Profile> profileKey = new Context.Key<>();
+
+    public static Profile instance(Context context) {
+        Profile instance = context.get(profileKey);
+        if (instance == null) {
+            Options options = Options.instance(context);
+            String profileString = options.get(PROFILE);
+            if (profileString != null) instance = lookup(profileString);
+            if (instance == null) instance = DEFAULT;
+            context.put(profileKey, instance);
+        }
+        return instance;
+    }
+
+    public final String name;
+    public final int value;
+    final Set<Target> targets;
+
+    Profile() {
+        name = null;
+        value = Integer.MAX_VALUE;
+        targets = null;
+    }
+
+    Profile(String name, int value, Target t, Target... targets) {
+        this.name = name;
+        this.value = value;
+        this.targets = EnumSet.of(t, targets);
+    }
+
+    public static Profile lookup(String name) {
+        // the set of values is small enough to do linear search
+        for (Profile p: values()) {
+            if (name.equals(p.name))
+                return p;
+        }
+        return null;
+    }
+
+    public static Profile lookup(int value) {
+        // the set of values is small enough to do linear search
+        for (Profile p: values()) {
+            if (value == p.value)
+                return p;
+        }
+        return null;
+    }
+
+    public boolean isValid(Target t) {
+        return targets.contains(t);
+    }
+}