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test/hotspot/jtreg/gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java

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   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 CompressedClassSpaceSizeInJmapHeap
  26  * @bug 8004924
  27  * @summary Checks that jmap -heap contains the flag CompressedClassSpaceSize
  28  * @requires vm.hasSAandCanAttach & vm.opt.final.UseCompressedOops
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:CompressedClassSpaceSize=50m CompressedClassSpaceSizeInJmapHeap
  33  */
  34 
  35 import jdk.test.lib.JDKToolLauncher;
  36 import jdk.test.lib.Platform;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 import jdk.test.lib.process.ProcessTools;
  39 import java.nio.file.*;
  40 import java.io.File;
  41 import java.nio.charset.Charset;
  42 import java.util.List;
  43 
  44 public class CompressedClassSpaceSizeInJmapHeap {
  45     // Note that on some platforms it may require root privileges to run this test.
  46     public static void main(String[] args) throws Exception {
  47         if (!Platform.is64bit()) {
  48             // Compressed Class Space is only available on 64-bit JVMs




   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 CompressedClassSpaceSizeInJmapHeap
  26  * @bug 8004924
  27  * @summary Checks that jmap -heap contains the flag CompressedClassSpaceSize
  28  * @requires vm.hasSAandCanAttach & (vm.opt.final.UseCompressedOops == true)
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:CompressedClassSpaceSize=50m CompressedClassSpaceSizeInJmapHeap
  33  */
  34 
  35 import jdk.test.lib.JDKToolLauncher;
  36 import jdk.test.lib.Platform;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 import jdk.test.lib.process.ProcessTools;
  39 import java.nio.file.*;
  40 import java.io.File;
  41 import java.nio.charset.Charset;
  42 import java.util.List;
  43 
  44 public class CompressedClassSpaceSizeInJmapHeap {
  45     // Note that on some platforms it may require root privileges to run this test.
  46     public static void main(String[] args) throws Exception {
  47         if (!Platform.is64bit()) {
  48             // Compressed Class Space is only available on 64-bit JVMs


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