Java tutorial
//package com.java2s; /** * SonarQube Scanner for Gradle * Copyright (C) 2015-2018 SonarSource * sonarqube@googlegroups.com * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This program 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 */ import java.util.Collection; import java.util.LinkedHashSet; import java.util.Map; import java.util.stream.StreamSupport; public class Main { static void appendProps(Map<String, Object> properties, String key, Iterable<?> valuesToAppend) { properties.putIfAbsent(key, new LinkedHashSet<String>()); StreamSupport.stream(valuesToAppend.spliterator(), false) .forEach(v -> ((Collection<String>) properties.get(key)).add(v.toString())); } }