--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/com/sun/source/util/Plugin.java	Mon Nov 19 11:38:49 2012 -0800
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2005, 2012, 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.source.util;
+
+import java.util.ServiceLoader;
+import javax.tools.StandardLocation;
+
+/**
+ * The interface for a javac plug-in.
+ *
+ * <p>The javac plug-in mechanism allows a user to specify one or more plug-ins
+ * on the javac command line, to be started soon after the compilation
+ * has begun. Plug-ins are identified by a user-friendly name. Each plug-in that
+ * is started will be passed an array of strings, which may be used to
+ * provide the plug-in with values for any desired options or other arguments.
+ *
+ * <p>Plug-ins are located via a {@link ServiceLoader},
+ * using the same class path as annotation processors (i.e.
+ * {@link StandardLocation#PROCESSOR_PATH PROCESSOR_PATH} or
+ * {@code -processorpath}).
+ *
+ * <p>It is expected that a typical plug-in will simply register a
+ * {@link TaskListener} to be informed of events during the execution
+ * of the compilation, and that the rest of the work will be done
+ * by the task listener.
+ *
+ * @since 1.8
+ */
+public interface Plugin {
+    /**
+     * Get the user-friendly name of this plug-in.
+     * @return the user-friendly name of the plug-in
+     */
+    String getName();
+
+    /**
+     * Invoke the plug-in for a given compilation task.
+     * @param task The compilation task that has just been started
+     * @param args Arguments, if any, for the plug-in
+     */
+    void call(JavacTask task, String... args);
+}