diff -r ad84ae073248 -r b000362a89a0 test/hotspot/jtreg/runtime/cds/appcds/MoveJDKTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/hotspot/jtreg/runtime/cds/appcds/MoveJDKTest.java Mon Jul 29 10:34:20 2019 -0400 @@ -0,0 +1,194 @@ +/* + * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +/* + * @test + * @summary Test that CDS still works when the JDK is moved to a new directory + * @requires vm.cds + * @requires os.family == "linux" + * @library /test/lib + * @modules java.base/jdk.internal.misc + * java.management + * jdk.jartool/sun.tools.jar + * @compile test-classes/Hello.java + * @run driver MoveJDKTest + */ + +// This test works only on Linux because it depends on symlinks and the name of the hotspot DLL (libjvm.so). +// It probably doesn't work on Windows. +// TODO: change libjvm.so to libjvm.dylib on MacOS, before adding "@requires os.family == mac" +// TODO: test on solaris, before adding "@requires os.family == solaris" + +import java.io.File; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.nio.file.StandardCopyOption; +import jdk.test.lib.process.OutputAnalyzer; + +public class MoveJDKTest { + public static void main(String[] args) throws Exception { + String java_home_src = System.getProperty("java.home"); + String java_home_dst = System.getProperty("user.dir") + File.separator + "moved_jdk"; + + TestCommon.startNewArchiveName(); + String jsaFile = TestCommon.getCurrentArchiveName(); + String jsaOpt = "-XX:SharedArchiveFile=" + jsaFile; + { + ProcessBuilder pb = makeBuilder(java_home_src + "/bin/java", "-Xshare:dump", jsaOpt); + TestCommon.executeAndLog(pb, "dump"); + } + { + ProcessBuilder pb = makeBuilder(java_home_src + "/bin/java", + "-Xshare:auto", + jsaOpt, + "-Xlog:class+path=info", + "-version"); + OutputAnalyzer out = TestCommon.executeAndLog(pb, "exec-src"); + out.shouldNotContain("shared class paths mismatch"); + out.shouldNotContain("BOOT classpath mismatch"); + } + + clone(new File(java_home_src), new File(java_home_dst)); + System.out.println("============== Cloned JDK at " + java_home_dst); + + // Test runtime with cloned JDK + { + ProcessBuilder pb = makeBuilder(java_home_dst + "/bin/java", + "-Xshare:auto", + jsaOpt, + "-Xlog:class+path=info", + "-version"); + OutputAnalyzer out = TestCommon.executeAndLog(pb, "exec-dst"); + out.shouldNotContain("shared class paths mismatch"); + out.shouldNotContain("BOOT classpath mismatch"); + } + + // Test with bad JAR file name, hello.modules + String helloJar = JarBuilder.getOrCreateHelloJar(); + String fake_modules = copyFakeModulesFromHelloJar(); + String dumptimeBootAppendOpt = "-Xbootclasspath/a:" + fake_modules; + { + ProcessBuilder pb = makeBuilder(java_home_src + "/bin/java", + "-Xshare:dump", + dumptimeBootAppendOpt, + jsaOpt); + TestCommon.executeAndLog(pb, "dump"); + } + { + String runtimeBootAppendOpt = dumptimeBootAppendOpt + System.getProperty("path.separator") + helloJar; + ProcessBuilder pb = makeBuilder(java_home_dst + "/bin/java", + "-Xshare:auto", + runtimeBootAppendOpt, + jsaOpt, + "-Xlog:class+path=info", + "-version"); + OutputAnalyzer out = TestCommon.executeAndLog(pb, "exec-dst"); + out.shouldNotContain("shared class paths mismatch"); + out.shouldNotContain("BOOT classpath mismatch"); + } + + // Test with no modules image in the /lib directory + renameModulesFile(java_home_dst); + { + ProcessBuilder pb = makeBuilder(java_home_dst + "/bin/java", + "-version"); + OutputAnalyzer out = TestCommon.executeAndLog(pb, "exec-missing-modules"); + out.shouldHaveExitValue(1); + out.shouldContain("Failed setting boot class path."); + } + } + + // Do a cheap clone of the JDK. Most files can be sym-linked. However, $JAVA_HOME/bin/java and $JAVA_HOME/lib/.../libjvm.so" + // must be copied, because the java.home property is derived from the canonicalized paths of these 2 files. + static void clone(File src, File dst) throws Exception { + if (dst.exists()) { + if (!dst.isDirectory()) { + throw new RuntimeException("Not a directory :" + dst); + } + } else { + if (!dst.mkdir()) { + throw new RuntimeException("Cannot create directory: " + dst); + } + } + for (String child : src.list()) { + if (child.equals(".") || child.equals("..")) { + continue; + } + + File child_src = new File(src, child); + File child_dst = new File(dst, child); + if (child_dst.exists()) { + throw new RuntimeException("Already exists: " + child_dst); + } + if (child_src.isFile()) { + if (child.equals("libjvm.so") || child.equals("java")) { + Files.copy(child_src.toPath(), /* copy data to -> */ child_dst.toPath()); + } else { + Files.createSymbolicLink(child_dst.toPath(), /* link to -> */ child_src.toPath()); + } + } else { + clone(child_src, child_dst); + } + } + } + + static void renameModulesFile(String javaHome) throws Exception { + String modulesDir = javaHome + File.separator + "lib"; + File origModules = new File(modulesDir, "modules"); + if (!origModules.exists()) { + throw new RuntimeException("modules file not found"); + } + + File renamedModules = new File(modulesDir, "orig_modules"); + if (renamedModules.exists()) { + throw new RuntimeException("found orig_modules unexpectedly"); + } + + boolean success = origModules.renameTo(renamedModules); + if (!success) { + throw new RuntimeException("rename modules file failed"); + } + } + + static ProcessBuilder makeBuilder(String... args) throws Exception { + System.out.print("["); + for (String s : args) { + System.out.print(" " + s); + } + System.out.println(" ]"); + return new ProcessBuilder(args); + } + + private static String copyFakeModulesFromHelloJar() throws Exception { + String classDir = System.getProperty("test.classes"); + String newFile = "hello.modules"; + String path = classDir + File.separator + newFile; + + Files.copy(Paths.get(classDir, "hello.jar"), + Paths.get(classDir, newFile), + StandardCopyOption.REPLACE_EXISTING); + return path; + } +}