diff -r 000000000000 -r f19f17f8f8dc rt/core/src/main/java/org/apidesign/bck2brwsr/core/Exported.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/core/src/main/java/org/apidesign/bck2brwsr/core/Exported.java	Fri Apr 12 18:48:48 2013 +0200
@@ -0,0 +1,38 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.core;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Marks the corresponding program element as exported. Exported elements are
+ * visible from other modules. Can be used on packages, classes, methods,
+ * constructors and fields.
+ *
+ * @since 0.6
+ */
+@Retention(RetentionPolicy.CLASS)
+@Target({ ElementType.PACKAGE, ElementType.TYPE,
+          ElementType.METHOD, ElementType.CONSTRUCTOR,
+          ElementType.FIELD })
+public @interface Exported {
+
+}