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 TestG1HeapRegionSize
  26  * @key gc
  27  * @bug 8021879
  28  * @requires vm.gc.G1
  29  * @summary Verify that the flag G1HeapRegionSize is updated properly
  30  * @modules java.base/jdk.internal.misc
  31  * @modules java.management/sun.management
  32  * @library /testlibrary
  33  * @run main TestG1HeapRegionSize
  34  */
  35 
  36 import java.util.regex.Matcher;
  37 import java.util.regex.Pattern;
  38 
  39 import java.util.ArrayList;
  40 import java.util.Arrays;
  41 
  42 import jdk.test.lib.*;

  43 
  44 public class TestG1HeapRegionSize {
  45 
  46   private static void checkG1HeapRegionSize(String[] flags, int expectedValue, int exitValue) throws Exception {
  47     ArrayList<String> flagList = new ArrayList<String>();
  48     flagList.addAll(Arrays.asList(flags));
  49     flagList.add("-XX:+UseG1GC");
  50     flagList.add("-XX:+PrintFlagsFinal");
  51     flagList.add("-version");
  52 
  53     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flagList.toArray(new String[0]));
  54     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  55     output.shouldHaveExitValue(exitValue);
  56 
  57     if (exitValue == 0) {
  58       String stdout = output.getStdout();
  59       int flagValue = getFlagValue("G1HeapRegionSize", stdout);
  60       if (flagValue != expectedValue) {
  61         throw new RuntimeException("Wrong value for G1HeapRegionSize. Expected " + expectedValue + " but got " + flagValue);
  62       }

  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 TestG1HeapRegionSize
  26  * @key gc
  27  * @bug 8021879
  28  * @requires vm.gc.G1
  29  * @summary Verify that the flag G1HeapRegionSize is updated properly
  30  * @modules java.base/jdk.internal.misc
  31  * @modules java.management/sun.management
  32  * @library /test/lib
  33  * @run main TestG1HeapRegionSize
  34  */
  35 
  36 import java.util.regex.Matcher;
  37 import java.util.regex.Pattern;
  38 
  39 import java.util.ArrayList;
  40 import java.util.Arrays;
  41 
  42 import jdk.test.lib.process.OutputAnalyzer;
  43 import jdk.test.lib.process.ProcessTools;
  44 
  45 public class TestG1HeapRegionSize {
  46 
  47   private static void checkG1HeapRegionSize(String[] flags, int expectedValue, int exitValue) throws Exception {
  48     ArrayList<String> flagList = new ArrayList<String>();
  49     flagList.addAll(Arrays.asList(flags));
  50     flagList.add("-XX:+UseG1GC");
  51     flagList.add("-XX:+PrintFlagsFinal");
  52     flagList.add("-version");
  53 
  54     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flagList.toArray(new String[0]));
  55     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  56     output.shouldHaveExitValue(exitValue);
  57 
  58     if (exitValue == 0) {
  59       String stdout = output.getStdout();
  60       int flagValue = getFlagValue("G1HeapRegionSize", stdout);
  61       if (flagValue != expectedValue) {
  62         throw new RuntimeException("Wrong value for G1HeapRegionSize. Expected " + expectedValue + " but got " + flagValue);
  63       }