Here you can find the source of map(final Object... keysAndValues)
public static Map<String, Object> map(final Object... keysAndValues)
//package com.java2s; /*//from www .java 2 s.com * Copyright (c) 2002-2016 "Neo Technology," * Network Engine for Objects in Lund AB [http://neotechnology.com] * * This product is licensed to you under the Apache License, Version 2.0 (the "License"). * You may not use this product except in compliance with the License. * * This product may include a number of subcomponents with * separate copyright notices and license terms. Your use of the source * code for these subcomponents is subject to the terms and * conditions of the subcomponent's license, as noted in the LICENSE file. */ import java.util.HashMap; import java.util.Map; public class Main { public static Map<String, Object> map(final Object... keysAndValues) { return new HashMap<String, Object>() { { for (int i = 0; i < keysAndValues.length; i += 2) { put(String.valueOf(keysAndValues[i]), keysAndValues[i + 1]); } } }; } }