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Support ManagementFactory.getPlatformMBeanServer
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....core.genscavenge/src/com/oracle/svm/core/genscavenge/CompleteGarbageCollectorMXBean.java
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/* | ||
* Copyright (c) 2013, 2020, 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. Oracle designates this | ||
* particular file as subject to the "Classpath" exception as provided | ||
* by Oracle in the LICENSE file that accompanied this code. | ||
* | ||
* 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. | ||
*/ | ||
package com.oracle.svm.core.genscavenge; | ||
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//Checkstyle: stop | ||
import java.lang.management.ManagementFactory; | ||
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import javax.management.MBeanNotificationInfo; | ||
import javax.management.NotificationEmitter; | ||
import javax.management.NotificationFilter; | ||
import javax.management.NotificationListener; | ||
import javax.management.ObjectName; | ||
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import org.graalvm.nativeimage.Platform; | ||
import org.graalvm.nativeimage.Platforms; | ||
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import com.oracle.svm.core.util.TimeUtils; | ||
import com.sun.management.GcInfo; | ||
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import sun.management.Util; | ||
//Checkstyle: resume | ||
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public final class CompleteGarbageCollectorMXBean implements com.sun.management.GarbageCollectorMXBean, NotificationEmitter { | ||
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@Platforms(Platform.HOSTED_ONLY.class) | ||
public CompleteGarbageCollectorMXBean() { | ||
} | ||
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@Override | ||
public long getCollectionCount() { | ||
return HeapImpl.getHeapImpl().getGCImpl().getAccounting().getCompleteCollectionCount(); | ||
} | ||
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@Override | ||
public long getCollectionTime() { | ||
long nanos = HeapImpl.getHeapImpl().getGCImpl().getAccounting().getCompleteCollectionTotalNanos(); | ||
return TimeUtils.roundNanosToMillis(nanos); | ||
} | ||
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@Override | ||
public String[] getMemoryPoolNames() { | ||
/* Return a new array each time because arrays are not immutable. */ | ||
return new String[]{"young generation space", "old generation space"}; | ||
} | ||
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@Override | ||
public String getName() { | ||
/* Changing this name will break assumptions we take in the object replacer. */ | ||
return "complete scavenger"; | ||
} | ||
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@Override | ||
public boolean isValid() { | ||
return true; | ||
} | ||
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@Override | ||
public ObjectName getObjectName() { | ||
return Util.newObjectName(ManagementFactory.GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE, getName()); | ||
} | ||
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@Override | ||
public void removeNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback) { | ||
} | ||
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@Override | ||
public void addNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback) { | ||
} | ||
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@Override | ||
public void removeNotificationListener(NotificationListener listener) { | ||
} | ||
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@Override | ||
public MBeanNotificationInfo[] getNotificationInfo() { | ||
return new MBeanNotificationInfo[0]; | ||
} | ||
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@Override | ||
public GcInfo getLastGcInfo() { | ||
return null; | ||
} | ||
} |
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181 changes: 0 additions & 181 deletions
181
....oracle.svm.core.genscavenge/src/com/oracle/svm/core/genscavenge/GCManagementFactory.java
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