1 /* 2 * Copyright (c) 2018, 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 import java.net.URI; 25 import java.nio.file.FileSystem; 26 import java.nio.file.FileSystems; 27 import java.nio.file.FileVisitResult; 28 import java.nio.file.Files; 29 import java.nio.file.Path; 30 import java.nio.file.SimpleFileVisitor; 31 import java.nio.file.attribute.BasicFileAttributes; 32 33 /** 34 * @test 35 * @bug 8189604 36 * @run main/othervm -Djava.awt.headless=false HangDuringStaticInitialization 37 * @run main/othervm -Djava.awt.headless=true HangDuringStaticInitialization 38 */ 39 public final class HangDuringStaticInitialization { 40 41 public static void main(final String[] args) throws Exception { 42 FileSystem fs = FileSystems.getFileSystem(URI.create("jrt:/")); 43 test(fs, "/modules/java.desktop"); 44 test(fs, "/modules/java.datatransfer"); 45 } 46 47 private static void test(FileSystem fs, String s) throws Exception { 48 Files.walkFileTree(fs.getPath(s), new SimpleFileVisitor<>() { 49 @Override 50 public FileVisitResult visitFile(Path file, 51 BasicFileAttributes attrs) { 52 file = file.subpath(2, file.getNameCount()); 53 String name = file.toString(); 54 if (name.endsWith(".class")) { 55 name = name.substring(0, name.indexOf(".")).replace('/', '.'); 56 try { 57 Class.forName(name, true, null); 58 } catch (Throwable e) { 59 // only the crash / hang will be considered as failure 60 } 61 } 62 return FileVisitResult.CONTINUE; 63 } 64 }); 65 } 66 }