/* * Copyright (c) 2018, 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 8185582 8197989 * @modules java.base/java.util.zip:open java.base/jdk.internal.vm.annotation * @summary Check the resources of Inflater, Deflater and ZipFile are always * cleaned/released when the instance is not unreachable
*/
// verify the "native resource" of In/Deflater has been cleaned privatestaticvoid testDeInflater() throws Throwable {
Field zsRefDef = Deflater.class.getDeclaredField("zsRef");
Field zsRefInf = Inflater.class.getDeclaredField("zsRef"); if (!zsRefDef.trySetAccessible() || !zsRefInf.trySetAccessible()) { thrownew RuntimeException("'zsRef' is not accesible");
} if (addrOf(zsRefDef.get(new Deflater())) == -1 ||
addrOf(zsRefInf.get(new Inflater())) == -1) { thrownew RuntimeException("'addr' is not accesible");
}
List<Object> list = new ArrayList<>(); byte[] buf1 = newbyte[1024]; byte[] buf2 = newbyte[1024]; for (int i = 0; i < 10; i++) { var def = new Deflater();
list.add(zsRefDef.get(def));
def.setInput("hello".getBytes());
def.finish(); int n = def.deflate(buf1);
var inf = new Inflater();
list.add(zsRefInf.get(inf));
inf.setInput(buf1, 0, n);
n = inf.inflate(buf2); if (!"hello".equals(new String(buf2, 0, n))) { thrownew RuntimeException("compression/decompression failed");
}
}
int n = 10; long cnt = list.size(); while (n-- > 0 && cnt != 0) { Thread.sleep(100);
System.gc();
cnt = list.stream().filter(o -> addrOf(o) != 0).count();
} if (cnt != 0) thrownew RuntimeException("cleaner failed to clean : " + cnt);
}
@DontInline privatestatic Object openAndCloseZipFile(File zip) throws Throwable { try { try (var fos = new FileOutputStream(zip); var zos = new ZipOutputStream(fos)) {
zos.putNextEntry(new ZipEntry("hello"));
zos.write("hello".getBytes(US_ASCII));
zos.closeEntry();
}
var zf = new ZipFile(zip); var es = zf.entries(); while (es.hasMoreElements()) {
zf.getInputStream(es.nextElement()).read();
}
Field fieldRes = ZipFile.class.getDeclaredField("res"); if (!fieldRes.trySetAccessible()) { thrownew RuntimeException("'ZipFile.res' is not accesible");
}
Object zfRes = fieldRes.get(zf); if (zfRes == null) { thrownew RuntimeException("'ZipFile.res' is null");
}
Field fieldZsrc = zfRes.getClass().getDeclaredField("zsrc"); if (!fieldZsrc.trySetAccessible()) { thrownew RuntimeException("'ZipFile.zsrc' is not accesible");
} return fieldZsrc.get(zfRes);
} finally {
zip.delete();
}
}
privatestaticvoid testZipFile() throws Throwable {
File dir = new File(System.getProperty("test.dir", "."));
File zip = File.createTempFile("testzf", "zip", dir);
Object zsrc = openAndCloseZipFile(zip); if (zsrc != null) {
Field zfileField = zsrc.getClass().getDeclaredField("zfile"); if (!zfileField.trySetAccessible()) { thrownew RuntimeException("'ZipFile.Source.zfile' is not accesible");
} //System.out.println("zffile: " + zfileField.get(zsrc)); int n = 10; while (n-- > 0 && zfileField.get(zsrc) != null) {
System.out.println("waiting gc ... " + n);
System.gc(); Thread.sleep(100);
} if (zfileField.get(zsrc) != null) { thrownew RuntimeException("cleaner failed to clean zipfile.");
}
}
}
}
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