/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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*/
/* @test
* @bug 7021870
* @summary Reading last gzip chain member must not close the input stream
*/
import java.io.*;
import java.util.*;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
public class GZIPInZip {
private static volatile Throwable trouble;
public static void main(String[] args) throws Throwable {
final PipedOutputStream pos = new PipedOutputStream();
final PipedInputStream pis = new PipedInputStream(pos);
Thread compressor = new Thread() {
public void run() {
final byte[] xbuf = { 'x' };
try {
ZipOutputStream zos = new ZipOutputStream(pos);
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf); gos1.finish();
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf); gos2.finish();
zos.closeEntry();
} catch (Throwable t) {
trouble = t;
}
}
};
Thread uncompressor = new Thread() {
public void run() {
try {
ZipInputStream zis = new ZipInputStream(pis);
zis.getNextEntry();
InputStream gis = new GZIPInputStream(zis);
// try to read more than the entry has
gis.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new AssertionError("ZIP stream was prematurely closed");
}
} catch (Throwable t) {
trouble = t;
}
}
};
compressor.start(); uncompressor.start();
compressor.join(); uncompressor.join();
if (trouble != null)
throw trouble;
}
}