1 /*
2 * Copyright (c) 2017, 2019, 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 specified
28 * in -Xbootclasspath/a on windows.
29 * @library /test/lib
30 * @modules java.base/jdk.internal.misc
31 * java.management
32 * jdk.jartool/sun.tools.jar
33 * @run driver LongBCP
34 */
35
36 import java.io.File;
37 import java.nio.file.Files;
38 import java.nio.file.FileStore;
39 import java.nio.file.Path;
40 import java.nio.file.Paths;
41 import java.util.Arrays;
42 import jdk.test.lib.compiler.CompilerUtils;
43 import jdk.test.lib.process.ProcessTools;
44 import jdk.test.lib.process.OutputAnalyzer;
45
46 public class LongBCP {
47
48 private static final int MAX_PATH = 260;
49
50 public static void main(String args[]) throws Exception {
51 Path sourceDir = Paths.get(System.getProperty("test.src"), "test-classes");
52 Path classDir = Paths.get(System.getProperty("test.classes"));
53 Path destDir = classDir;
54
55 // create a sub-path so that the destDir length is almost MAX_PATH
56 // so that the full path (with the class name) will exceed MAX_PATH
57 int subDirLen = MAX_PATH - classDir.toString().length() - 2;
58 if (subDirLen > 0) {
59 char[] chars = new char[subDirLen];
60 Arrays.fill(chars, 'x');
61 String subPath = new String(chars);
62 destDir = Paths.get(System.getProperty("test.classes"), subPath);
63 }
64
65 CompilerUtils.compile(sourceDir, destDir);
66
67 String bootCP = "-Xbootclasspath/a:" + destDir.toString();
68 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
69 bootCP, "Hello");
70
71 OutputAnalyzer output = new OutputAnalyzer(pb.start());
72 output.shouldContain("Hello World")
73 .shouldHaveExitValue(0);
74
75 // increase the length of destDir to slightly over MAX_PATH
76 destDir = Paths.get(destDir.toString(), "xxxxx");
77 CompilerUtils.compile(sourceDir, destDir);
78
79 bootCP = "-Xbootclasspath/a:" + destDir.toString();
80 pb = ProcessTools.createJavaProcessBuilder(
81 bootCP, "Hello");
82
83 output = new OutputAnalyzer(pb.start());
84 output.shouldContain("Hello World")
85 .shouldHaveExitValue(0);
86
87 // create a hello.jar
88 sun.tools.jar.Main jarTool = new sun.tools.jar.Main(System.out, System.err, "jar");
89 String helloJar = destDir.toString() + File.separator + "hello.jar";
90 if (!jarTool.run(new String[]
91 {"-cf", helloJar, "-C", destDir.toString(), "Hello.class"})) {
92 throw new RuntimeException("Could not write the Hello jar file");
93 }
94
95 // run with long bootclasspath to hello.jar
96 bootCP = "-Xbootclasspath/a:" + helloJar;
97 pb = ProcessTools.createJavaProcessBuilder(
98 bootCP, "Hello");
99
100 output = new OutputAnalyzer(pb.start());
101 output.shouldContain("Hello World")
102 .shouldHaveExitValue(0);
103
104 // relative path tests
105 //
106 // relative path length within the file system limit
107 int fn_max_length = 255;
108 // In AUFS file system, the maximal file name length is 242
109 FileStore store = Files.getFileStore(new File(".").toPath());
110 String fs_type = store.type();
111 if ("aufs".equals(fs_type)) {
112 fn_max_length = 242;
113 }
114 char[] chars = new char[fn_max_length];
115 Arrays.fill(chars, 'y');
116 String subPath = new String(chars);
117 destDir = Paths.get(".", subPath);
118
119 CompilerUtils.compile(sourceDir, destDir);
120
121 bootCP = "-Xbootclasspath/a:" + destDir.toString();
122 pb = ProcessTools.createJavaProcessBuilder(
123 bootCP, "Hello");
124
125 output = new OutputAnalyzer(pb.start());
126 output.shouldContain("Hello World")
127 .shouldHaveExitValue(0);
128
129 // Test a relative path for a jar file < MAX_PATH, but where the
130 // absolute path is > MAX_PATH.
131 Path jarDir = Paths.get(".");
132 for (int i = 0; i < 21; ++i) {
133 jarDir = jarDir.resolve("0123456789");
134 }
135 Files.createDirectories(jarDir);
136 Path jarPath = jarDir.resolve("hello.jar");
137 Files.copy(Paths.get(helloJar), jarPath);
138 bootCP = "-Xbootclasspath/a:" + jarPath.toString();
139 pb = ProcessTools.createJavaProcessBuilder(bootCP, "Hello");
140
141 output = new OutputAnalyzer(pb.start());
142 output.shouldContain("Hello World")
143 .shouldHaveExitValue(0);
144
145 // total relative path length exceeds MAX_PATH
146 destDir = Paths.get(destDir.toString(), "yyyyyyyy");
147
148 CompilerUtils.compile(sourceDir, destDir);
149
150 bootCP = "-Xbootclasspath/a:" + destDir.toString();
151 pb = ProcessTools.createJavaProcessBuilder(
152 bootCP, "Hello");
153
154 output = new OutputAnalyzer(pb.start());
155 output.shouldContain("Hello World")
156 .shouldHaveExitValue(0);
157 }
158 }