/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** * @test * @bug 6285124 * @summary Small compressed zip entries should be read in one read() operation * @author Martin Buchholz */ import java.io.*; import java.util.zip.*; public class ShortRead { public static void main(String[] args) throws Exception { final File zFile = new File("abc.zip"); try { final String entryName = "abc"; final String data = "Data disponible"; try (FileOutputStream fos = new FileOutputStream(zFile); ZipOutputStream zos = new ZipOutputStream(fos)) { zos.putNextEntry(new ZipEntry(entryName)); zos.write(data.getBytes("ASCII")); zos.closeEntry(); } try (ZipFile zipFile = new ZipFile(zFile)) { final ZipEntry zentry = zipFile.getEntry(entryName); final InputStream inputStream = zipFile.getInputStream(zentry); System.out.printf("size=%d csize=%d available=%d%n", zentry.getSize(), zentry.getCompressedSize(), inputStream.available()); byte[] buf = new byte[data.length()]; final int count = inputStream.read(buf); if (! new String(buf, "ASCII").equals(data) || count != data.length()) throw new Exception("short read?"); } } finally { zFile.delete(); } } }