Here you can find the source of closeZipQuietly(@Nullable ZipFile file)
public static void closeZipQuietly(@Nullable ZipFile file)
//package com.java2s; /*//from w w w. j a va 2s .com * Minecraft Forge * Copyright (c) 2016. * * This library 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 version 2.1 * of the License. * * This library 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 library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ import javax.annotation.Nullable; import java.io.IOException; import java.util.zip.ZipFile; public class Main { /** * {@link ZipFile} does not implement {@link Closeable} on Java 6. * This method is the same as {@link IOUtils#closeQuietly(Closeable)} but works on {@link ZipFile} on Java 6. */ public static void closeZipQuietly(@Nullable ZipFile file) { try { if (file != null) { file.close(); } } catch (IOException ioe) { // ignore } } }