1 /* 2 * Copyright (c) 2016, 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 * @bug 8159262 27 * @summary layers over the boot layer are repeatedly created, during this iteration, GCs are forced to verify correct walk of module and package lists. 28 * @modules java.base/jdk.internal.misc 29 * @library /testlibrary /test/lib 30 * @compile ../CompilerUtils.java 31 * @build ModuleStressGC 32 * @run main/othervm ModuleStressGC 33 */ 34 35 import java.nio.file.Path; 36 import java.nio.file.Paths; 37 import jdk.test.lib.*; 38 39 public class ModuleStressGC { 40 41 private static final String TEST_SRC = System.getProperty("test.src"); 42 private static final String TEST_CLASSES = System.getProperty("test.classes"); 43 44 private static final Path SRC_DIR = Paths.get(TEST_SRC, "src"); 45 private static final Path MODS_DIR = Paths.get(TEST_CLASSES, "mods"); 46 47 /** 48 * Compile two module definitions used by the test, jdk.test and jdk.translet. 49 */ 50 public static void main(String[] args) throws Exception { 51 52 boolean compiled; 53 // Compile module jdk.test declaration 54 compiled = CompilerUtils.compile( 55 SRC_DIR.resolve("jdk.test"), 56 MODS_DIR.resolve("jdk.test")); 57 if (!compiled) { 58 throw new RuntimeException("Test failed to compile module jdk.test"); 59 } 60 61 // Compile module jdk.translet declaration 62 compiled = CompilerUtils.compile( 63 SRC_DIR.resolve("jdk.translet"), 64 MODS_DIR.resolve("jdk.translet"), 65 "-XaddExports:jdk.test/test=jdk.translet", 66 "-mp", MODS_DIR.toString()); 67 if (!compiled) { 68 throw new RuntimeException("Test failed to compile module jdk.translet"); 69 } 70 71 // Sanity check that the test, jdk.test/test/MainGC.java, 72 // correctly walks module jdk.test's reads list and package 73 // test's, defined to module jdk.translet, export list at 74 // GC safepoints. 75 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 76 "-Xlog:modules=trace", 77 "-mp", MODS_DIR.toString(), 78 "-m", "jdk.test/test.MainGC"); 79 OutputAnalyzer oa = new OutputAnalyzer(pb.start()); 80 oa.shouldContain("package test defined in module jdk.test, exports list being walked") 81 .shouldContain("module jdk.test reads list being walked") 82 .shouldHaveExitValue(0); 83 } 84 }