1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.tools.layoutlib.java;
18
19import com.android.tools.layoutlib.create.ReplaceMethodCallsAdapter;
20
21import java.util.Iterator;
22import java.util.LinkedHashMap;
23import java.util.Map;
24import java.util.Map.Entry;
25
26/**
27 * Provides alternate implementation to java.util.LinkedHashMap#eldest(), which is present as a
28 * non-public method in the Android VM, but not present on the host VM. This is injected in the
29 * layoutlib using {@link ReplaceMethodCallsAdapter}.
30 */
31public class LinkedHashMap_Delegate {
32    public static <K,V> Map.Entry<K,V> eldest(LinkedHashMap<K,V> map) {
33        Iterator<Entry<K, V>> iterator = map.entrySet().iterator();
34        return iterator.hasNext() ? iterator.next() : null;
35    }
36}
37