1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @summary JVM should be able to handle full path (directory path plus
  27  *          class name) or directory path longer than MAX_PATH on windows.
  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @run main LongPath
  32  */
  33 
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 import java.util.Arrays;
  37 import jdk.test.lib.compiler.CompilerUtils;
  38 import jdk.test.lib.process.ProcessTools;
  39 import jdk.test.lib.process.OutputAnalyzer;
  40 
  41 public class LongPath {
  42 
  43     private static final int MAX_PATH = 260;
  44 
  45     public static void main(String args[]) throws Exception {
  46         Path sourceDir = Paths.get(System.getProperty("test.src"), "test-classes");
  47         Path classDir = Paths.get(System.getProperty("test.classes"));
  48         Path destDir = classDir;
  49 
  50         // create a sub-path so that the destDir length is almost MAX_PATH
  51         // so that the full path (with the class name) will exceed MAX_PATH
  52         int subDirLen = MAX_PATH - classDir.toString().length() - 2;
  53         if (subDirLen > 0) {
  54             char[] chars = new char[subDirLen];
  55             Arrays.fill(chars, 'x');
  56             String subPath = new String(chars);
  57             destDir = Paths.get(System.getProperty("test.classes"), subPath);
  58         }
  59 
  60         CompilerUtils.compile(sourceDir, destDir);
  61 
  62         String bootCP = "-Xbootclasspath/a:" + destDir.toString();
  63         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  64             bootCP, "Hello");
  65 
  66         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  67         output.shouldContain("Hello World")
  68               .shouldHaveExitValue(0);
  69 
  70         // increase the length of destDir to slightly over MAX_PATH
  71         destDir = Paths.get(destDir.toString(), "xxxxx");
  72         CompilerUtils.compile(sourceDir, destDir);
  73 
  74         bootCP = "-Xbootclasspath/a:" + destDir.toString();
  75         pb = ProcessTools.createJavaProcessBuilder(
  76             bootCP, "Hello");
  77 
  78         output = new OutputAnalyzer(pb.start());
  79         output.shouldContain("Hello World")
  80               .shouldHaveExitValue(0);
  81     }
  82 }