8015324: Create tests for CDS feature

Wrote tests for use of CDS with ObjectAlignmentInBytes CL option

Reviewed-by: coleenp, ctornqvi, hseigel

hotspot/test/testlibrary/com/oracle/java/testlibrary/Platform.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+package com.oracle.java.testlibrary;
+
+public class Platform {
+  private static final String osName = System.getProperty("os.name");
+  private static final String dataModel = System.getProperty("sun.arch.data.model");
+  private static final String vmVersion = System.getProperty("java.vm.version");
+
+  public static boolean is64bit() {
+    return dataModel.equals("64");
+  }
+
+  public static boolean isSolaris() {
+    return osName.toLowerCase().startsWith("sunos");
+  }
+
+  public static boolean isWindows() {
+    return osName.toLowerCase().startsWith("win");
+  }
+
+  public static boolean isOSX() {
+    return osName.toLowerCase().startsWith("mac");
+  }
+
+  public static boolean isLinux() {
+    return osName.toLowerCase().startsWith("linux");
+  }
+
+  public static String getOsName() {
+    return osName;
+  }
+
+  public static boolean isDebugBuild() {
+    return vmVersion.toLowerCase().contains("debug");
+  }
+
+  public static String getVMVersion() {
+    return vmVersion;
+  }
+}

hotspot/test/testlibrary/com/oracle/java/testlibrary/ProcessTools.java

@@ -112,10 +112,8 @@ public final class ProcessTools {
    * @return String[] with platform specific arguments, empty if there are none
    */
   public static String[] getPlatformSpecificVMArgs() {
-    String osName = System.getProperty("os.name");
-    String dataModel = System.getProperty("sun.arch.data.model");
 
-    if (osName.equals("SunOS") && dataModel.equals("64")) {
+    if (Platform.is64bit() && Platform.isSolaris()) {
       return new String[] { "-d64" };
     }