| /* |
| * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import com.oracle.java.testlibrary.Asserts; |
| import com.oracle.java.testlibrary.Utils; |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.MemoryNotificationInfo; |
| import java.lang.management.MemoryPoolMXBean; |
| import javax.management.ListenerNotFoundException; |
| import javax.management.Notification; |
| import javax.management.NotificationEmitter; |
| import javax.management.NotificationListener; |
| import sun.hotspot.code.BlobType; |
| |
| /* |
| * @test ThresholdNotificationsTest |
| * @library /testlibrary /../../test/lib |
| * @build ThresholdNotificationsTest |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:-UseCodeCacheFlushing |
| * -XX:-MethodFlushing -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
| * -XX:+SegmentedCodeCache -XX:CompileCommand=compileonly,null::* |
| * ThresholdNotificationsTest |
| * @summary testing of getUsageThreshold() |
| */ |
| public class ThresholdNotificationsTest implements NotificationListener { |
| |
| private final static long WAIT_TIME = 10000L; |
| private volatile long counter; |
| private final BlobType btype; |
| |
| public static void main(String[] args) { |
| for (BlobType bt : BlobType.getAvailable()) { |
| if (CodeCacheUtils.isCodeHeapPredictable(bt)) { |
| new ThresholdNotificationsTest(bt).runTest(); |
| } |
| } |
| } |
| |
| public ThresholdNotificationsTest(BlobType btype) { |
| this.btype = btype; |
| counter = 0L; |
| CodeCacheUtils.disableCollectionUsageThresholds(); |
| } |
| |
| @Override |
| public void handleNotification(Notification notification, Object handback) { |
| String nType = notification.getType(); |
| String poolName |
| = CodeCacheUtils.getPoolNameFromNotification(notification); |
| // consider code cache events only |
| if (CodeCacheUtils.isAvailableCodeHeapPoolName(poolName)) { |
| Asserts.assertEQ(MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED, |
| nType, "Unexpected event received: " + nType); |
| if (poolName.equals(btype.getMemoryPool().getName())) { |
| counter++; |
| } |
| } |
| } |
| |
| protected void runTest() { |
| int iterationsCount = |
| Integer.getInteger("com.oracle.java.testlibrary.iterations", 1); |
| MemoryPoolMXBean bean = btype.getMemoryPool(); |
| ((NotificationEmitter) ManagementFactory.getMemoryMXBean()). |
| addNotificationListener(this, null, null); |
| for (int i = 0; i < iterationsCount; i++) { |
| CodeCacheUtils.hitUsageThreshold(bean, btype); |
| } |
| Asserts.assertTrue( |
| Utils.waitForCondition( |
| () -> counter == iterationsCount, WAIT_TIME), |
| "Couldn't receive expected notifications count"); |
| try { |
| ((NotificationEmitter) ManagementFactory.getMemoryMXBean()). |
| removeNotificationListener(this); |
| } catch (ListenerNotFoundException ex) { |
| throw new AssertionError("Can't remove notification listener", ex); |
| } |
| System.out.printf("INFO: Scenario finished successfully for %s%n", |
| bean.getName()); |
| } |
| } |