J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /** |
| 25 | * @test |
| 26 | * @bug 6423026 |
| 27 | * @summary Check that it is possible to open more than 2,048 zip files on |
| 28 | * Windows. |
| 29 | */ |
| 30 | |
| 31 | import java.util.zip.ZipEntry; |
| 32 | import java.util.zip.ZipFile; |
| 33 | import java.util.zip.ZipOutputStream; |
| 34 | import java.io.ByteArrayOutputStream; |
| 35 | import java.io.File; |
| 36 | import java.io.FileOutputStream; |
| 37 | |
| 38 | public class ManyZipFiles { |
| 39 | static final int numFiles = 3000; |
| 40 | |
| 41 | public static void realMain(String[] args) throws Throwable { |
| 42 | // Linux does not yet allow opening this many files; Solaris |
| 43 | // 8 requires an explicit allocation of more file descriptors |
| 44 | // to succeed. Since this test is written to check for a |
| 45 | // Windows capability it is much simpler to only run it |
| 46 | // on that platform. |
| 47 | String osName = System.getProperty("os.name"); |
| 48 | if (osName.startsWith("Linux") || osName.startsWith("SunOS")) { |
| 49 | return; |
| 50 | } |
| 51 | |
| 52 | // Create some zip data |
| 53 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| 54 | ZipOutputStream zos = new ZipOutputStream(baos); |
| 55 | ZipEntry ze = new ZipEntry("test"); |
| 56 | zos.putNextEntry(ze); |
| 57 | byte[] hello = "hello, world".getBytes("ASCII"); |
| 58 | zos.write(hello, 0, hello.length); |
| 59 | zos.closeEntry(); |
| 60 | zos.finish(); |
| 61 | zos.close(); |
| 62 | byte[] data = baos.toByteArray(); |
| 63 | |
| 64 | ZipFile zips[] = new ZipFile[numFiles]; |
| 65 | |
| 66 | try { |
| 67 | // Create a directory for zip files created below |
| 68 | File tmpdir = new File( |
| 69 | System.getProperty("java.io.tmpdir") |
| 70 | + File.separator + "ManyZipFiles"); |
| 71 | if (tmpdir.exists() && !tmpdir.isDirectory()) { |
| 72 | fail(tmpdir.getAbsolutePath() |
| 73 | + " already exists but is not a directory"); |
| 74 | return; |
| 75 | } |
| 76 | if (!tmpdir.exists()) { |
| 77 | if (!tmpdir.mkdirs()) { |
| 78 | fail("Couldn't create directory " |
| 79 | + tmpdir.getAbsolutePath() + " for test files"); |
| 80 | return; |
| 81 | } |
| 82 | } else if (!tmpdir.canWrite()) { |
| 83 | fail("Don't have write access for directory " |
| 84 | + tmpdir.getAbsolutePath() + " for test files"); |
| 85 | return; |
| 86 | } |
| 87 | tmpdir.deleteOnExit(); |
| 88 | |
| 89 | // Create and then open a large number of zip files |
| 90 | for (int i = 0; i < numFiles; i++) { |
| 91 | File f = File.createTempFile("test", ".zip", tmpdir); |
| 92 | f.deleteOnExit(); |
| 93 | FileOutputStream fos = new FileOutputStream(f); |
| 94 | fos.write(data, 0, data.length); |
| 95 | fos.close(); |
| 96 | try { |
| 97 | zips[i] = new ZipFile(f); |
| 98 | } catch (Throwable t) { |
| 99 | fail("Failed to open zip file #" + i + " named " |
| 100 | + zips[i].getName()); |
| 101 | throw t; |
| 102 | } |
| 103 | } |
| 104 | } finally { |
| 105 | // This finally block is due to bug 4171239. On windows, if the |
| 106 | // file is still open at the end of the VM, deleteOnExit won't |
| 107 | // take place. "new ZipFile(...)" opens the zip file, so we have |
| 108 | // to explicity close those opened above. This finally block can |
| 109 | // be removed when 4171239 is fixed. |
| 110 | for (int i = 0; i < numFiles; i++) { |
| 111 | if (zips[i] != null) { |
| 112 | try { |
| 113 | zips[i].close(); |
| 114 | } catch (Throwable t) { |
| 115 | fail("At zip[" + i + "] named " + zips[i].getName() |
| 116 | + " caught " + t); |
| 117 | } |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | pass(); |
| 122 | } |
| 123 | |
| 124 | //--------------------- Infrastructure --------------------------- |
| 125 | static volatile int passed = 0, failed = 0; |
| 126 | static void pass() {passed++;} |
| 127 | static void fail() {failed++; Thread.dumpStack();} |
| 128 | static void fail(String msg) {System.out.println(msg); fail();} |
| 129 | static void unexpected(Throwable t) {failed++; t.printStackTrace();} |
| 130 | static void check(boolean cond) {if (cond) pass(); else fail();} |
| 131 | static void equal(Object x, Object y) { |
| 132 | if (x == null ? y == null : x.equals(y)) pass(); |
| 133 | else fail(x + " not equal to " + y);} |
| 134 | public static void main(String[] args) throws Throwable { |
| 135 | try {realMain(args);} catch (Throwable t) {unexpected(t);} |
| 136 | System.out.println("\nPassed = " + passed + " failed = " + failed); |
| 137 | if (failed > 0) throw new AssertionError("Some tests failed");} |
| 138 | } |