Here you can find the source of toMap(Properties properties)
public static Map<String, String> toMap(Properties properties)
//package com.java2s; /**//from ww w .java 2s . com * Copyright 2005-2015 Red Hat, Inc. * * Red Hat licenses this file to you 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. */ import java.util.HashMap; import java.util.Map; import java.util.Properties; import java.util.Set; public class Main { /** * Returns a Map for the given Properties object */ public static Map<String, String> toMap(Properties properties) { Map<String, String> answer = new HashMap<>(); if (properties != null) { Set<Map.Entry<Object, Object>> entries = properties.entrySet(); for (Map.Entry<Object, Object> entry : entries) { Object value = entry.getValue(); Object key = entry.getKey(); if (key != null && value != null) { answer.put(key.toString(), value.toString()); } } } return answer; } }