test/hotspot/jtreg/runtime/appcds/dynamicArchive/MainModuleOnly.java
changeset 54927 1512d88b24c6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/appcds/dynamicArchive/MainModuleOnly.java	Fri May 17 08:29:55 2019 -0700
@@ -0,0 +1,259 @@
+/*
+ * Copyright (c) 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
+ * @requires vm.cds
+ * @library /test/lib /test/hotspot/jtreg/runtime/appcds
+ * @modules jdk.compiler
+ *          jdk.jartool/sun.tools.jar
+ *          jdk.jlink
+ * @run driver MainModuleOnly
+ * @summary Test some scenarios with a main modular jar specified in the --module-path and -cp options in the command line.
+ */
+
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.Platform;
+
+public class MainModuleOnly extends DynamicArchiveTestBase {
+
+    private static final Path USER_DIR = Paths.get(System.getProperty("user.dir"));
+
+    private static final String FS = File.separator;
+    private static final String TEST_SRC = System.getProperty("test.src") +
+        FS + ".." + FS + "jigsaw" + FS + "modulepath";
+
+    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
+    private static final Path MODS_DIR = Paths.get("mods");
+
+    // the module name of the test module
+    private static final String TEST_MODULE1 = "com.simple";
+
+    // the module main class
+    private static final String MAIN_CLASS = "com.simple.Main";
+
+    private static Path moduleDir = null;
+    private static Path moduleDir2 = null;
+    private static Path destJar = null;
+
+    public static void buildTestModule() throws Exception {
+
+        // javac -d mods/$TESTMODULE --module-path MOD_DIR src/$TESTMODULE/**
+        JarBuilder.compileModule(SRC_DIR.resolve(TEST_MODULE1),
+                                 MODS_DIR.resolve(TEST_MODULE1),
+                                 MODS_DIR.toString());
+
+
+        moduleDir = Files.createTempDirectory(USER_DIR, "mlib");
+        moduleDir2 = Files.createTempDirectory(USER_DIR, "mlib2");
+
+        Path srcJar = moduleDir.resolve(TEST_MODULE1 + ".jar");
+        destJar = moduleDir2.resolve(TEST_MODULE1 + ".jar");
+        String classes = MODS_DIR.resolve(TEST_MODULE1).toString();
+        JarBuilder.createModularJar(srcJar.toString(), classes, MAIN_CLASS);
+        Files.copy(srcJar, destJar);
+
+    }
+
+    static void testDefaultBase() throws Exception {
+        String topArchiveName = getNewArchiveName("top");
+        doTest(topArchiveName);
+    }
+
+    public static void main(String... args) throws Exception {
+        runTest(MainModuleOnly::testDefaultBase);
+    }
+
+    public static void doTest(String topArchiveName) throws Exception {
+        // compile the modules and create the modular jar files
+        buildTestModule();
+        // create an archive with both -cp and --module-path in the command line.
+        // Only the class in the modular jar in the --module-path will be archived;
+        // the class in the modular jar in the -cp won't be archived.
+        dump2(null, topArchiveName,
+              "-Xlog:cds+dynamic=debug,cds=debug",
+              "-cp", destJar.toString(),
+              "--module-path", moduleDir.toString(),
+              "-m", TEST_MODULE1)
+              .assertNormalExit(output -> {
+                      output.shouldContain("Buffer-space to target-space delta")
+                            .shouldContain("Written dynamic archive 0x");
+                  });
+
+        // run with the archive using the same command line as in dump time.
+        // The main class should be loaded from the archive.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--module-path", moduleDir.toString(),
+             "-m", TEST_MODULE1)
+            .assertNormalExit(output -> {
+                    output.shouldContain("[class,load] com.simple.Main source: shared objects file")
+                          .shouldHaveExitValue(0);
+                });
+
+        // run with the archive with the main class name inserted before the -m.
+        // The main class name will be picked up before the module name. So the
+        // main class should be loaded from the jar in the -cp.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--module-path", moduleDir.toString(),
+             MAIN_CLASS, "-m", TEST_MODULE1)
+            .assertNormalExit(out ->
+                out.shouldMatch(".class.load. com.simple.Main source:.*com.simple.jar"));
+
+        // run with the archive with exploded module. Since during dump time, we
+        // only archive classes from the modular jar in the --module-path, the
+        // main class should be loaded from the exploded module directory.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--module-path", MODS_DIR.toString(),
+             "-m", TEST_MODULE1 + "/" + MAIN_CLASS)
+            .assertNormalExit(out -> {
+                out.shouldMatch(".class.load. com.simple.Main source:.*com.simple")
+                   .shouldContain(MODS_DIR.toString());
+            });
+
+        // run with the archive with the --upgrade-module-path option.
+        // CDS will be disabled with this options and the main class will be
+        // loaded from the modular jar.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--upgrade-module-path", moduleDir.toString(),
+             "--module-path", moduleDir.toString(),
+             "-m", TEST_MODULE1)
+            .assertSilentlyDisabledCDS(out -> {
+                out.shouldHaveExitValue(0)
+                   .shouldMatch("CDS is disabled when the.*option is specified")
+                   .shouldMatch(".class.load. com.simple.Main source:.*com.simple.jar");
+            });
+        // run with the archive with the --limit-modules option.
+        // CDS will be disabled with this options and the main class will be
+        // loaded from the modular jar.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--limit-modules", "java.base," + TEST_MODULE1,
+             "--module-path", moduleDir.toString(),
+             "-m", TEST_MODULE1)
+            .assertSilentlyDisabledCDS(out -> {
+                out.shouldHaveExitValue(0)
+                   .shouldMatch("CDS is disabled when the.*option is specified")
+                   .shouldMatch(".class.load. com.simple.Main source:.*com.simple.jar");
+            });
+        // run with the archive with the --patch-module option.
+        // CDS will be disabled with this options and the main class will be
+        // loaded from the modular jar.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--patch-module", TEST_MODULE1 + "=" + MODS_DIR.toString(),
+             "--module-path", moduleDir.toString(),
+             "-m", TEST_MODULE1)
+            .assertSilentlyDisabledCDS(out -> {
+                out.shouldHaveExitValue(0)
+                   .shouldMatch("CDS is disabled when the.*option is specified")
+                   .shouldMatch(".class.load. com.simple.Main source:.*com.simple.jar");
+            });
+        // modify the timestamp of the jar file
+        (new File(destJar.toString())).setLastModified(System.currentTimeMillis() + 2000);
+        // run with the archive and the jar with modified timestamp.
+        // It should fail due to timestamp of the jar doesn't match the one
+        // used during dump time.
+        run2(null, topArchiveName,
+             "-Xlog:cds+dynamic=debug,cds=debug,class+load=trace",
+             "-cp", destJar.toString(),
+             "--module-path", moduleDir.toString(),
+             "-m", TEST_MODULE1)
+            .assertAbnormalExit(
+                "A jar file is not the one used while building the shared archive file:");
+        // create an archive with a non-empty directory in the --module-path.
+        // The dumping process will exit with an error due to non-empty directory
+        // in the --module-path.
+        dump2(null, topArchiveName,
+              "-Xlog:cds+dynamic=debug,cds=debug",
+              "-cp", destJar.toString(),
+              "--module-path", MODS_DIR.toString(),
+              "-m", TEST_MODULE1 + "/" + MAIN_CLASS)
+            .assertAbnormalExit(output -> {
+                output.shouldMatch("Error: non-empty directory.*com.simple");
+                });
+
+        // test module path with very long length
+        //
+        // This test can't be run on the windows platform due to an existing
+        // issue in ClassLoader::get_canonical_path() (JDK-8190737).
+        if (Platform.isWindows()) {
+            System.out.println("Long module path test cannot be tested on the Windows platform.");
+            return;
+        }
+        Path longDir = USER_DIR;
+        int pathLen = longDir.toString().length();
+        int PATH_LEN = 2034;
+        int MAX_DIR_LEN = 250;
+        while (pathLen < PATH_LEN) {
+            int remaining = PATH_LEN - pathLen;
+            int subPathLen = remaining > MAX_DIR_LEN ? MAX_DIR_LEN : remaining;
+            char[] chars = new char[subPathLen];
+            Arrays.fill(chars, 'x');
+            String subPath = new String(chars);
+            longDir = Paths.get(longDir.toString(), subPath);
+            pathLen = longDir.toString().length();
+        }
+        File longDirFile = new File(longDir.toString());
+        try {
+            longDirFile.mkdirs();
+        } catch (Exception e) {
+            throw e;
+        }
+        Path longDirJar = longDir.resolve(TEST_MODULE1 + ".jar");
+        // IOException results from the Files.copy() call on platform
+        // such as MacOS X. Test can't be proceeded further with the
+        // exception.
+        try {
+            Files.copy(destJar, longDirJar);
+        } catch (java.io.IOException ioe) {
+            System.out.println("Caught IOException from Files.copy(). Cannot continue.");
+            return;
+        }
+        dump2(null, topArchiveName,
+              "-Xlog:cds+dynamic=debug,cds=debug",
+              "-cp", destJar.toString(),
+              "-Xlog:exceptions=trace",
+              "--module-path", longDirJar.toString(),
+              "-m", TEST_MODULE1)
+            .ifAbnormalExit(output -> {
+                output.shouldMatch("os::stat error.*CDS dump aborted");
+                });
+    }
+}