0N/A/*
3909N/A * Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/A/**
0N/A * @test
0N/A * @bug 6423026
0N/A * @summary Check that it is possible to open more than 2,048 zip files on
0N/A * Windows.
0N/A */
0N/A
0N/Aimport java.util.zip.ZipEntry;
0N/Aimport java.util.zip.ZipFile;
0N/Aimport java.util.zip.ZipOutputStream;
0N/Aimport java.io.ByteArrayOutputStream;
0N/Aimport java.io.File;
0N/Aimport java.io.FileOutputStream;
0N/A
0N/Apublic class ManyZipFiles {
0N/A static final int numFiles = 3000;
0N/A
0N/A public static void realMain(String[] args) throws Throwable {
0N/A // Linux does not yet allow opening this many files; Solaris
0N/A // 8 requires an explicit allocation of more file descriptors
0N/A // to succeed. Since this test is written to check for a
0N/A // Windows capability it is much simpler to only run it
0N/A // on that platform.
0N/A String osName = System.getProperty("os.name");
4652N/A if (!(osName.startsWith("Windows"))) {
0N/A return;
0N/A }
0N/A
0N/A // Create some zip data
0N/A ByteArrayOutputStream baos = new ByteArrayOutputStream();
3656N/A try (ZipOutputStream zos = new ZipOutputStream(baos)) {
3656N/A ZipEntry ze = new ZipEntry("test");
3656N/A zos.putNextEntry(ze);
3656N/A byte[] hello = "hello, world".getBytes("ASCII");
3656N/A zos.write(hello, 0, hello.length);
3656N/A zos.closeEntry();
3656N/A zos.finish();
3656N/A }
0N/A byte[] data = baos.toByteArray();
0N/A
0N/A ZipFile zips[] = new ZipFile[numFiles];
0N/A
0N/A try {
0N/A // Create a directory for zip files created below
0N/A File tmpdir = new File(
0N/A System.getProperty("java.io.tmpdir")
0N/A + File.separator + "ManyZipFiles");
0N/A if (tmpdir.exists() && !tmpdir.isDirectory()) {
0N/A fail(tmpdir.getAbsolutePath()
0N/A + " already exists but is not a directory");
0N/A return;
0N/A }
0N/A if (!tmpdir.exists()) {
0N/A if (!tmpdir.mkdirs()) {
0N/A fail("Couldn't create directory "
0N/A + tmpdir.getAbsolutePath() + " for test files");
0N/A return;
0N/A }
0N/A } else if (!tmpdir.canWrite()) {
0N/A fail("Don't have write access for directory "
0N/A + tmpdir.getAbsolutePath() + " for test files");
0N/A return;
0N/A }
0N/A tmpdir.deleteOnExit();
0N/A
0N/A // Create and then open a large number of zip files
0N/A for (int i = 0; i < numFiles; i++) {
0N/A File f = File.createTempFile("test", ".zip", tmpdir);
0N/A f.deleteOnExit();
3656N/A try (FileOutputStream fos = new FileOutputStream(f)) {
3656N/A fos.write(data, 0, data.length);
3656N/A }
0N/A try {
0N/A zips[i] = new ZipFile(f);
0N/A } catch (Throwable t) {
0N/A fail("Failed to open zip file #" + i + " named "
0N/A + zips[i].getName());
0N/A throw t;
0N/A }
0N/A }
0N/A } finally {
3656N/A // This finally block is due to bug 4171239. On Windows, if the
0N/A // file is still open at the end of the VM, deleteOnExit won't
0N/A // take place. "new ZipFile(...)" opens the zip file, so we have
3656N/A // to explicitly close those opened above. This finally block can
3656N/A // be removed when 4171239 is fixed. See also 6357433, against which
3656N/A // 4171239 was closed as a duplicate.
0N/A for (int i = 0; i < numFiles; i++) {
0N/A if (zips[i] != null) {
0N/A try {
0N/A zips[i].close();
0N/A } catch (Throwable t) {
0N/A fail("At zip[" + i + "] named " + zips[i].getName()
0N/A + " caught " + t);
0N/A }
0N/A }
0N/A }
0N/A }
0N/A pass();
0N/A }
0N/A
0N/A //--------------------- Infrastructure ---------------------------
0N/A static volatile int passed = 0, failed = 0;
0N/A static void pass() {passed++;}
0N/A static void fail() {failed++; Thread.dumpStack();}
0N/A static void fail(String msg) {System.out.println(msg); fail();}
0N/A static void unexpected(Throwable t) {failed++; t.printStackTrace();}
0N/A static void check(boolean cond) {if (cond) pass(); else fail();}
0N/A static void equal(Object x, Object y) {
0N/A if (x == null ? y == null : x.equals(y)) pass();
0N/A else fail(x + " not equal to " + y);}
0N/A public static void main(String[] args) throws Throwable {
0N/A try {realMain(args);} catch (Throwable t) {unexpected(t);}
0N/A System.out.println("\nPassed = " + passed + " failed = " + failed);
0N/A if (failed > 0) throw new AssertionError("Some tests failed");}
0N/A}