--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/java/net/CacheResponse.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2003, 2004, 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 java.net;
+
+import java.io.InputStream;
+import java.util.Map;
+import java.util.List;
+import java.io.IOException;
+
+/**
+ * Represent channels for retrieving resources from the
+ * ResponseCache. Instances of such a class provide an
+ * InputStream that returns the entity body, and also a
+ * getHeaders() method which returns the associated response headers.
+ *
+ * @author Yingxian Wang
+ * @since 1.5
+ */
+public abstract class CacheResponse {
+
+    /**
+     * Returns the response headers as a Map.
+     *
+     * @return An immutable Map from response header field names to
+     *         lists of field values. The status line has null as its
+     *         field name.
+     * @throws IOException if an I/O error occurs
+     *            while getting the response headers
+     */
+    public abstract Map<String, List<String>> getHeaders() throws IOException;
+
+    /**
+     * Returns the response body as an InputStream.
+     *
+     * @return an InputStream from which the response body can
+     *         be accessed
+     * @throws IOException if an I/O error occurs while
+     *         getting the response body
+     */
+    public abstract InputStream getBody() throws IOException;
+}