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 If a path (directory plus class name) or a directory path exceeds 27 * the MAX_PATH on windows, vm should should print an informative 28 * warning message in additional to throwing a ClassNotFoundException. 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @run main LongPath 33 */ 34 35 import java.nio.file.Path; 36 import java.nio.file.Paths; 37 import java.util.Arrays; 38 import jdk.test.lib.compiler.CompilerUtils; 39 import jdk.test.lib.process.ProcessTools; 40 import jdk.test.lib.process.OutputAnalyzer; 41 42 public class LongPath { 43 44 private static final int MAX_PATH = 260; 45 46 public static void main(String args[]) throws Exception { 47 Path sourceDir = Paths.get(System.getProperty("test.src"), "test-classes"); 48 Path classDir = Paths.get(System.getProperty("test.classes")); 49 Path destDir = classDir; 50 51 // create a sub-path so that the destDir length is almost MAX_PATH 52 // so that the full path (with the class name) will exceed MAX_PATH 53 int subDirLen = MAX_PATH - classDir.toString().length() - 2; 54 if (subDirLen > 0) { 55 char[] chars = new char[subDirLen]; 56 Arrays.fill(chars, 'x'); 57 String subPath = new String(chars); 58 destDir = Paths.get(System.getProperty("test.classes"), subPath); 59 } 60 61 CompilerUtils.compile(sourceDir, destDir); 62 63 String bootCP = "-Xbootclasspath/a:" + destDir.toString(); 64 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 65 bootCP, "Hello"); 66 67 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 68 try { 69 output.shouldContain("Hello World"); 70 output.shouldHaveExitValue(0); 71 } catch (java.lang.RuntimeException e) { 72 output.shouldContain("java.lang.ClassNotFoundException: Hello"); 73 output.shouldContain("warning: construct full path name failed"); 74 output.shouldHaveExitValue(1); 75 } 76 77 // increase the length of destDir to slightly over MAX_PATH 78 destDir = Paths.get(destDir.toString(), "xxxxx"); 79 CompilerUtils.compile(sourceDir, destDir); 80 81 bootCP = "-Xbootclasspath/a:" + destDir.toString(); 82 pb = ProcessTools.createJavaProcessBuilder( 83 bootCP, "Hello"); 84 85 output = new OutputAnalyzer(pb.start()); 86 try { 87 output.shouldContain("Hello World"); 88 output.shouldHaveExitValue(0); 89 } catch (java.lang.RuntimeException e) { 90 output.shouldContain("java.lang.ClassNotFoundException: Hello"); 91 output.shouldContain("os::stat failed"); 92 output.shouldHaveExitValue(1); 93 } 94 } 95 }