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 import org.testng.annotations.Test; 25 26 import java.util.regex.Pattern; 27 28 import com.oracle.java.testlibrary.OutputAnalyzer; 29 import com.oracle.java.testlibrary.dcmd.CommandExecutor; 30 import com.oracle.java.testlibrary.dcmd.JMXExecutor; 31 32 /* 33 * @test 34 * @summary Test of diagnostic command GC.class_histogram 35 * @library /testlibrary 36 * @modules java.base/sun.misc 37 * java.compiler 38 * java.management 39 * jdk.jvmstat/sun.jvmstat.monitor 40 * @build com.oracle.java.testlibrary.* 41 * @build com.oracle.java.testlibrary.dcmd.* 42 * @run testng ClassHistogramTest 43 */ 44 public class ClassHistogramTest { 45 public static class TestClass {} 46 public static TestClass[] instances = new TestClass[1024]; 47 protected String classHistogramArgs = ""; 48 49 static { 50 for (int i = 0; i < instances.length; ++i) { 51 instances[i] = new TestClass(); 52 } 53 } 54 55 public void run(CommandExecutor executor) { 56 OutputAnalyzer output = executor.execute("GC.class_histogram " + classHistogramArgs); 57 58 /* 59 * example output: 60 * num #instances #bytes class name 61 * ---------------------------------------------- | 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 import org.testng.annotations.Test; 25 26 import java.util.regex.Pattern; 27 28 import jdk.test.lib.OutputAnalyzer; 29 import jdk.test.lib.dcmd.CommandExecutor; 30 import jdk.test.lib.dcmd.JMXExecutor; 31 32 /* 33 * @test 34 * @summary Test of diagnostic command GC.class_histogram 35 * @library /testlibrary 36 * @modules java.base/sun.misc 37 * java.compiler 38 * java.management 39 * jdk.jvmstat/sun.jvmstat.monitor 40 * @build jdk.test.lib.* 41 * @build jdk.test.lib.dcmd.* 42 * @run testng ClassHistogramTest 43 */ 44 public class ClassHistogramTest { 45 public static class TestClass {} 46 public static TestClass[] instances = new TestClass[1024]; 47 protected String classHistogramArgs = ""; 48 49 static { 50 for (int i = 0; i < instances.length; ++i) { 51 instances[i] = new TestClass(); 52 } 53 } 54 55 public void run(CommandExecutor executor) { 56 OutputAnalyzer output = executor.execute("GC.class_histogram " + classHistogramArgs); 57 58 /* 59 * example output: 60 * num #instances #bytes class name 61 * ---------------------------------------------- |