Here you can find the source of newHashMap(Map.Entry
public static <K, V> Map<K, V> newHashMap(Map.Entry<K, V>... entries)
//package com.java2s; /******************************************************************************* * Copyright (c) 2011 GigaSpaces Technologies Ltd. All rights reserved * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License./*from w w w. java2 s. co m*/ *******************************************************************************/ import java.util.HashMap; import java.util.Map; public class Main { public static <K, V> Map<K, V> newHashMap(Map.Entry<K, V>... entries) { Map<K, V> map = new HashMap<K, V>(); for (Map.Entry<K, V> entry : entries) { map.put(entry.getKey(), entry.getValue()); } return map; } }