8031151: Add basic CDS tests

Summary: Added new tests to cover missing CDS basic funtions
Reviewed-by: zgu, hseigel

hotspot/test/runtime/SharedArchiveFile/ArchiveDoesNotExist.java

+/*
+ * Copyright (c) 2014, 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 ArchiveDoesNotExist
+ * @summary Test how VM handles "file does not exist" situation while
+ *          attempting to use CDS archive. JVM should exit gracefully
+ *          when sharing mode is ON, and continue w/o sharing if sharing
+ *          mode is AUTO.
+ * @library /testlibrary
+ * @run main ArchiveDoesNotExist
+ */
+
+import com.oracle.java.testlibrary.*;
+import java.io.File;
+
+public class ArchiveDoesNotExist {
+    public static void main(String[] args) throws Exception {
+        String fileName = "test.jsa";
+
+        File cdsFile = new File(fileName);
+        if (cdsFile.exists())
+            throw new RuntimeException("Test error: cds file already exists");
+
+        // Sharing: on
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+           "-XX:+UnlockDiagnosticVMOptions",
+           "-XX:SharedArchiveFile=./" + fileName,
+           "-Xshare:on",
+           "-version");
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Specified shared archive not found");
+        output.shouldHaveExitValue(1);
+
+        // Sharing: auto
+        pb = ProcessTools.createJavaProcessBuilder(
+           "-XX:+UnlockDiagnosticVMOptions",
+           "-XX:SharedArchiveFile=./" + fileName,
+           "-Xshare:auto",
+           "-version");
+
+        output = new OutputAnalyzer(pb.start());
+        output.shouldContain("java version");
+        output.shouldNotContain("sharing");
+        output.shouldHaveExitValue(0);
+    }
+}

hotspot/test/runtime/SharedArchiveFile/CdsWriteError.java

+/*
+ * Copyright (c) 2014, 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 CdsWriteError
+ * @summary Test how VM handles situation when it is impossible to write the
+ *          CDS archive. VM is expected to exit gracefully and display the
+ *          correct reason for the error.
+ * @library /testlibrary
+ * @run main CdsWriteError
+ */
+
+import com.oracle.java.testlibrary.*;
+import java.io.File;
+
+public class CdsWriteError {
+    public static void main(String[] args) throws Exception {
+
+        if (Platform.isWindows()) {
+            System.out.println("This test is ignored on Windows. This test " +
+                "manipulates folder writable attribute, which is known to be " +
+                "often ignored by Windows");
+
+            return;
+        }
+
+        String folderName = "tmp";
+        String fileName = folderName + File.separator + "empty.jsa";
+
+        // create an empty archive file and make it read only
+        File folder = new File(folderName);
+        if (!folder.mkdir())
+            throw new RuntimeException("Error when creating a tmp folder");
+
+        File cdsFile = new File(fileName);
+        if (!cdsFile.createNewFile())
+            throw new RuntimeException("Error when creating an empty CDS file");
+        if (!cdsFile.setWritable(false))
+            throw new RuntimeException("Error: could not set writable attribute on cds file");
+        if (!folder.setWritable(false))
+            throw new RuntimeException("Error: could not set writable attribute on the cds folder");
+
+        try {
+           ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+             "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./" + fileName, "-Xshare:dump");
+
+            OutputAnalyzer output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Unable to create shared archive file");
+            output.shouldHaveExitValue(1);
+        } finally {
+            // doing this, just in case, to make sure that files can be deleted by the harness
+            // on any subsequent run
+            folder.setWritable(true);
+            cdsFile.setWritable(true);
+        }
+    }
+}
+

hotspot/test/runtime/SharedArchiveFile/DefaultUseWithClient.java

+/*
+ * Copyright (c) 2014, 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 DefaultUseWithClient
+ * @summary Test default behavior of sharing with -client
+ * @library /testlibrary
+ * @run main DefaultUseWithClient
+ */
+
+import com.oracle.java.testlibrary.*;
+import java.io.File;
+
+public class DefaultUseWithClient {
+    public static void main(String[] args) throws Exception {
+        String fileName = "test.jsa";
+
+        // On 32-bit windows CDS should be on by default in "-client" config
+        // Skip this test on any other platform
+        boolean is32BitWindows = (Platform.isWindows() && Platform.is32bit());
+        if (!is32BitWindows) {
+            System.out.println("Test only applicable on 32-bit Windows. Skipping");
+            return;
+        }
+
+        // create the archive
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+           "-XX:+UnlockDiagnosticVMOptions",
+           "-XX:SharedArchiveFile=./" + fileName,
+           "-Xshare:dump");
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldHaveExitValue(0);
+
+        pb = ProcessTools.createJavaProcessBuilder(
+           "-XX:+UnlockDiagnosticVMOptions",
+           "-XX:SharedArchiveFile=./" + fileName,
+           "-client",
+           "-version");
+
+        output = new OutputAnalyzer(pb.start());
+        output.shouldContain("sharing");
+        output.shouldHaveExitValue(0);
+   }
+}