Here you can find the source of getContext()
private static JAXBContext getContext()
//package com.java2s; /*//from ww w. j a v a 2 s. c om * ***** BEGIN LICENSE BLOCK ***** * Zimbra Collaboration Suite Server * Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016 Synacor, Inc. * * This program is free software: you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software Foundation, * version 2 of the License. * * 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 General Public License for more details. * You should have received a copy of the GNU General Public License along with this program. * If not, see <https://www.gnu.org/licenses/>. * ***** END LICENSE BLOCK ***** */ import javax.xml.bind.JAXBContext; public class Main { private static JAXBContext JAXB_CONTEXT; private static JAXBContext getContext() { if (JAXB_CONTEXT == null) { throw new IllegalStateException("JAXB has not been initialized"); } return JAXB_CONTEXT; } }