--- /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 <java home>/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;
+ }
+}