Here you can find the source of getFirst(NodeList nodes)
public static Element getFirst(NodeList nodes)
//package com.java2s; /*//from www . j av a 2 s .c o m * ApplicationInsights-Java * Copyright (c) Microsoft Corporation * All rights reserved. * * MIT License * Permission is hereby granted, free of charge, to any person obtaining a copy of this * software and associated documentation files (the ""Software""), to deal in the Software * without restriction, including without limitation the rights to use, copy, modify, merge, * publish, distribute, sublicense, and/or sell copies of the Software, and to permit * persons to whom the Software is furnished to do so, subject to the following conditions: * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class Main { public static Element getFirst(NodeList nodes) { if (nodes == null || nodes.getLength() == 0) { return null; } Node node = nodes.item(0); if (node.getNodeType() != Node.ELEMENT_NODE) { return null; } return (Element) node; } }