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 TestDynamicNumberOfGCThreads
  26  * @bug 8017462
  27  * @summary Ensure that UseDynamicNumberOfGCThreads runs
  28  * @requires vm.gc=="null"
  29  * @key gc
  30  * @library /testlibrary
  31  */
  32 
  33 import com.oracle.java.testlibrary.ProcessTools;
  34 import com.oracle.java.testlibrary.OutputAnalyzer;
  35 
  36 public class TestDynamicNumberOfGCThreads {
  37   public static void main(String[] args) throws Exception {
  38 
  39     testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
  40 
  41     testDynamicNumberOfGCThreads("UseG1GC");
  42 
  43     testDynamicNumberOfGCThreads("UseParallelGC");
  44   }
  45 
  46   private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
  47     output.shouldContain("new_active_workers");
  48     output.shouldHaveExitValue(0);
  49   }
  50 
  51   private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
  52     // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
  53     ProcessBuilder pb_enabled =
  54       ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-Xmx10M", "-XX:+PrintGCDetails",  "-XX:+UseDynamicNumberOfGCThreads", "-XX:+TraceDynamicGCThreads", GCTest.class.getName());

  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 TestDynamicNumberOfGCThreads
  26  * @bug 8017462
  27  * @summary Ensure that UseDynamicNumberOfGCThreads runs
  28  * @requires vm.gc=="null"
  29  * @key gc
  30  * @library /testlibrary
  31  */
  32 
  33 import jdk.test.lib.ProcessTools;
  34 import jdk.test.lib.OutputAnalyzer;
  35 
  36 public class TestDynamicNumberOfGCThreads {
  37   public static void main(String[] args) throws Exception {
  38 
  39     testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
  40 
  41     testDynamicNumberOfGCThreads("UseG1GC");
  42 
  43     testDynamicNumberOfGCThreads("UseParallelGC");
  44   }
  45 
  46   private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
  47     output.shouldContain("new_active_workers");
  48     output.shouldHaveExitValue(0);
  49   }
  50 
  51   private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
  52     // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
  53     ProcessBuilder pb_enabled =
  54       ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-Xmx10M", "-XX:+PrintGCDetails",  "-XX:+UseDynamicNumberOfGCThreads", "-XX:+TraceDynamicGCThreads", GCTest.class.getName());