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diff --git a/src/jdk/nashorn/api/scripting/ClassFilter.java b/src/jdk/nashorn/api/scripting/ClassFilter.java
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+/*
+ * Copyright (c) 2014, 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 jdk.nashorn.api.scripting;
+
+/**
+ * Class filter (optional) to be used by nashorn script engine.
+ * jsr-223 program embedding nashorn script can set ClassFilter instance
+ * to be used when an engine instance is created.
+ */
+public interface ClassFilter {
+     /**
+      * Should the Java class of the specified name be exposed to scripts?
+      * @param className is the fully qualified name of the java class being
+      * checked. This will not be null. Only non-array class names will be
+      * passed.
+      * @return true if the java class can be exposed to scripts false otherwise
+      */
+     public boolean exposeToScripts(String className);
+}