--- a/src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/internal/ImmutableHeaders.java	Tue Feb 06 19:37:56 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,94 +0,0 @@
-/*
- * Copyright (c) 2015, 2018, 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.incubator.http.internal;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.TreeMap;
-import java.util.function.BiPredicate;
-import java.util.function.Predicate;
-import jdk.incubator.http.HttpHeaders;
-import static java.util.Collections.emptyMap;
-import static java.util.Collections.unmodifiableList;
-import static java.util.Collections.unmodifiableMap;
-import static java.util.Objects.requireNonNull;
-
-final class ImmutableHeaders extends HttpHeaders {
-
-    private final Map<String, List<String>> map;
-
-    public static ImmutableHeaders empty() {
-        return of(emptyMap());
-    }
-
-    public static ImmutableHeaders of(Map<String, List<String>> src) {
-        return of(src, x -> true);
-    }
-
-    public static ImmutableHeaders of(HttpHeaders headers) {
-        return (headers instanceof ImmutableHeaders)
-                ? (ImmutableHeaders)headers
-                : of(headers.map());
-    }
-
-    public static ImmutableHeaders of(Map<String, List<String>> src,
-                                      Predicate<? super String> keyAllowed) {
-        requireNonNull(src, "src");
-        requireNonNull(keyAllowed, "keyAllowed");
-        return new ImmutableHeaders(src, headerAllowed(keyAllowed));
-    }
-
-    public static ImmutableHeaders of(Map<String, List<String>> src,
-                                      BiPredicate<? super String, ? super List<String>> headerAllowed) {
-        requireNonNull(src, "src");
-        requireNonNull(headerAllowed, "headerAllowed");
-        return new ImmutableHeaders(src, headerAllowed);
-    }
-
-    private ImmutableHeaders(Map<String, List<String>> src,
-                             BiPredicate<? super String, ? super List<String>> headerAllowed) {
-        Map<String, List<String>> m = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
-        src.entrySet().stream()
-                .filter(e -> headerAllowed.test(e.getKey(), e.getValue()))
-                .forEach(e ->
-                        {
-                            List<String> values = new ArrayList<>(e.getValue());
-                            m.put(e.getKey(), unmodifiableList(values));
-                        }
-                );
-        this.map = unmodifiableMap(m);
-    }
-
-    private static BiPredicate<String, List<String>> headerAllowed(Predicate<? super String> keyAllowed) {
-        return (n,v) -> keyAllowed.test(n);
-    }
-
-    @Override
-    public Map<String, List<String>> map() {
-        return map;
-    }
-}