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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/java/util/zip/ZipFile/ShortRead.java Normal file
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/*
* Copyright (c) 2005, 2011, 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();
}
}
}