| /* |
| * Copyright (c) 1998, 2003, 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 4028605 4109069 4234207 4401122 |
| @summary Make sure ZipInputStream/InflaterInputStream.available() will |
| return 0 after EOF has reached and 1 otherwise. |
| */ |
| |
| |
| import java.io.*; |
| import java.util.zip.*; |
| |
| public class Available { |
| |
| public static void main(String[] args) throws Exception { |
| // 4028605 4109069 4234207 |
| test1(); |
| // test 4401122 |
| test2(); |
| } |
| |
| private static void test1() throws Exception { |
| File f = new File(System.getProperty("test.src", "."), "input.jar"); |
| |
| // test ZipInputStream |
| ZipInputStream z = new ZipInputStream(new FileInputStream(f)); |
| z.getNextEntry(); |
| tryAvail(z); |
| |
| // test InflaterInputStream |
| ZipFile zfile = new ZipFile(f); |
| tryAvail(zfile.getInputStream(zfile.getEntry("Available.java"))); |
| z.close(); |
| } |
| |
| static void tryAvail(InputStream in) throws Exception { |
| byte[] buf = new byte[1024]; |
| int n; |
| |
| while ((n = in.read(buf)) != -1); |
| if (in.available() != 0) { |
| throw new Exception("available should return 0 after EOF"); |
| } |
| } |
| |
| // To reproduce 4401122 |
| private static void test2() throws Exception { |
| File f = new File(System.getProperty("test.src", "."), "input.jar"); |
| ZipFile zf = new ZipFile(f); |
| InputStream in = zf.getInputStream(zf.getEntry("Available.java")); |
| |
| int initialAvailable = in.available(); |
| in.read(); |
| if (in.available() != initialAvailable - 1) |
| throw new RuntimeException("Available not decremented."); |
| for(int j=0; j<initialAvailable-1; j++) |
| in.read(); |
| if (in.available() != 0) |
| throw new RuntimeException(); |
| in.close(); |
| if (in.available() != 0) |
| throw new RuntimeException(); |
| } |
| |
| } |