8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8024927
  27  * @summary Testing address of compressed class pointer space as best as possible.

  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  */
  32 
  33 import jdk.test.lib.Platform;
  34 import jdk.test.lib.process.ProcessTools;
  35 import jdk.test.lib.process.OutputAnalyzer;
  36 
  37 public class CompressedClassPointers {
  38 
  39     public static void smallHeapTest() throws Exception {
  40         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  41             "-XX:+UnlockDiagnosticVMOptions",
  42             "-XX:SharedBaseAddress=8g",
  43             "-Xmx128m",
  44             "-Xlog:gc+metaspace=trace",
  45             "-Xshare:off",
  46             "-Xlog:cds=trace",
  47             "-XX:+VerifyBeforeGC", "-version");

   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8024927
  27  * @summary Testing address of compressed class pointer space as best as possible.
  28  * @requires vm.opt.final.UseCompressedOops
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  */
  33 
  34 import jdk.test.lib.Platform;
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class CompressedClassPointers {
  39 
  40     public static void smallHeapTest() throws Exception {
  41         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  42             "-XX:+UnlockDiagnosticVMOptions",
  43             "-XX:SharedBaseAddress=8g",
  44             "-Xmx128m",
  45             "-Xlog:gc+metaspace=trace",
  46             "-Xshare:off",
  47             "-Xlog:cds=trace",
  48             "-XX:+VerifyBeforeGC", "-version");