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 <h2 title="Interface GarbageCollectorMXBean" class="title">Interface GarbageCollectorMXBean</h2>
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 </dl>
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 <dt>All Known Implementing Classes:</dt>
 <dd><code><a href="internal/ExtendedGarbageCollectorMXBeanImpl.html" title="class in com.ibm.lang.management.internal">ExtendedGarbageCollectorMXBeanImpl</a></code></dd>
 </dl>
 <hr>
 <pre>public interface <span class="typeNameLabel">GarbageCollectorMXBean</span>
 extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in com.sun.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></pre>
 <div class="block">The OpenJ9 extension interface for managing and monitoring the virtual machine's
  garbage collection functionality.</div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.5</dd>
 </dl>
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 <th class="colSecond" scope="col">Method</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLastCollectionEndTime()">getLastCollectionEndTime</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the end time <em>in milliseconds</em> of the last garbage
  collection that was carried out by this collector.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLastCollectionStartTime()">getLastCollectionStartTime</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the start time <em>in milliseconds</em> of the last garbage
  collection that was carried out by this collector.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMemoryUsed()">getMemoryUsed</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the amount of heap memory used by objects that are managed
  by the collector corresponding to this bean object.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTotalCompacts()">getTotalCompacts</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the cumulative total number of compacts that was performed by
  garbage collector corresponding to this bean object.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTotalMemoryFreed()">getTotalMemoryFreed</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the cumulative total amount of memory freed, in bytes, by the
  garbage collector corresponding to this bean object.</div>
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 <h3>Methods declared in interface&nbsp;com.sun.management.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in com.sun.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></h3>
 <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true#getLastGcInfo()" title="class or interface in com.sun.management" class="externalLink" target="_blank">getLastGcInfo</a></code></li>
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 <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/GarbageCollectorMXBean.html?is-external=true#getCollectionCount()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getCollectionCount</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/GarbageCollectorMXBean.html?is-external=true#getCollectionTime()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getCollectionTime</a></code></li>
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 <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true#getMemoryPoolNames()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getMemoryPoolNames</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true#getName()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getName</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true#isValid()" title="class or interface in java.lang.management" class="externalLink" target="_blank">isValid</a></code></li>
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 <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/PlatformManagedObject.html?is-external=true#getObjectName()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getObjectName</a></code></li>
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 <pre class="methodSignature">long&nbsp;getLastCollectionStartTime()</pre>
 <div class="block">Returns the start time <em>in milliseconds</em> of the last garbage
  collection that was carried out by this collector.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the start time of the most recent collection</dd>
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 <div class="block">Returns the end time <em>in milliseconds</em> of the last garbage
  collection that was carried out by this collector.</div>
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 <dd>the end time of the most recent collection</dd>
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 <div class="block">Returns the amount of heap memory used by objects that are managed
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 <dt><span class="returnLabel">Returns:</span></dt>
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 <pre class="methodSignature">long&nbsp;getTotalMemoryFreed()</pre>
 <div class="block">Returns the cumulative total amount of memory freed, in bytes, by the
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 <dt><span class="returnLabel">Returns:</span></dt>
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 <pre class="methodSignature">long&nbsp;getTotalCompacts()</pre>
 <div class="block">Returns the cumulative total number of compacts that was performed by
  garbage collector corresponding to this bean object.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>number of compacts performed</dd>
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	<h2 title="Interface GarbageCollectorMXBean" class="title">Interface GarbageCollectorMXBean</h2>
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	<div class="description">
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	<dt>All Superinterfaces:</dt>
	<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in com.sun.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in java.lang.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true" title="class or interface in java.lang.management" class="externalLink" target="_blank">MemoryManagerMXBean</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/PlatformManagedObject.html?is-external=true" title="class or interface in java.lang.management" class="externalLink" target="_blank">PlatformManagedObject</a></code></dd>
	</dl>
	<dl>
	<dt>All Known Implementing Classes:</dt>
	<dd><code><a href="internal/ExtendedGarbageCollectorMXBeanImpl.html" title="class in com.ibm.lang.management.internal">ExtendedGarbageCollectorMXBeanImpl</a></code></dd>
	</dl>
	<hr>
	<pre>public interface <span class="typeNameLabel">GarbageCollectorMXBean</span>
	extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in com.sun.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></pre>
	<div class="block">The OpenJ9 extension interface for managing and monitoring the virtual machine's
	garbage collection functionality.</div>
	<dl>
	<dt><span class="simpleTagLabel">Since:</span></dt>
	<dd>1.5</dd>
	</dl>
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	<h3>Method Summary</h3>
	<table class="memberSummary">
	<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption>
	<tr>
	<th class="colFirst" scope="col">Modifier and Type</th>
	<th class="colSecond" scope="col">Method</th>
	<th class="colLast" scope="col">Description</th>
	</tr>
	<tr id="i0" class="altColor">
	<td class="colFirst"><code>long</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLastCollectionEndTime()">getLastCollectionEndTime</a></span>()</code></th>
	<td class="colLast">
	<div class="block">Returns the end time <em>in milliseconds</em> of the last garbage
	collection that was carried out by this collector.</div>
	</td>
	</tr>
	<tr id="i1" class="rowColor">
	<td class="colFirst"><code>long</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLastCollectionStartTime()">getLastCollectionStartTime</a></span>()</code></th>
	<td class="colLast">
	<div class="block">Returns the start time <em>in milliseconds</em> of the last garbage
	collection that was carried out by this collector.</div>
	</td>
	</tr>
	<tr id="i2" class="altColor">
	<td class="colFirst"><code>long</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMemoryUsed()">getMemoryUsed</a></span>()</code></th>
	<td class="colLast">
	<div class="block">Returns the amount of heap memory used by objects that are managed
	by the collector corresponding to this bean object.</div>
	</td>
	</tr>
	<tr id="i3" class="rowColor">
	<td class="colFirst"><code>long</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTotalCompacts()">getTotalCompacts</a></span>()</code></th>
	<td class="colLast">
	<div class="block">Returns the cumulative total number of compacts that was performed by
	garbage collector corresponding to this bean object.</div>
	</td>
	</tr>
	<tr id="i4" class="altColor">
	<td class="colFirst"><code>long</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTotalMemoryFreed()">getTotalMemoryFreed</a></span>()</code></th>
	<td class="colLast">
	<div class="block">Returns the cumulative total amount of memory freed, in bytes, by the
	garbage collector corresponding to this bean object.</div>
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	<h3>Methods declared in interface com.sun.management.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in com.sun.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></h3>
	<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/GarbageCollectorMXBean.html?is-external=true#getLastGcInfo()" title="class or interface in com.sun.management" class="externalLink" target="_blank">getLastGcInfo</a></code></li>
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	<h3>Methods declared in interface java.lang.management.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/GarbageCollectorMXBean.html?is-external=true" title="class or interface in java.lang.management" class="externalLink" target="_blank">GarbageCollectorMXBean</a></h3>
	<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/GarbageCollectorMXBean.html?is-external=true#getCollectionCount()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getCollectionCount</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/GarbageCollectorMXBean.html?is-external=true#getCollectionTime()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getCollectionTime</a></code></li>
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	<h3>Methods declared in interface java.lang.management.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true" title="class or interface in java.lang.management" class="externalLink" target="_blank">MemoryManagerMXBean</a></h3>
	<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true#getMemoryPoolNames()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getMemoryPoolNames</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true#getName()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getName</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryManagerMXBean.html?is-external=true#isValid()" title="class or interface in java.lang.management" class="externalLink" target="_blank">isValid</a></code></li>
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	<h3>Methods declared in interface java.lang.management.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/PlatformManagedObject.html?is-external=true" title="class or interface in java.lang.management" class="externalLink" target="_blank">PlatformManagedObject</a></h3>
	<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/PlatformManagedObject.html?is-external=true#getObjectName()" title="class or interface in java.lang.management" class="externalLink" target="_blank">getObjectName</a></code></li>
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	<a id="getLastCollectionStartTime()">
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	<h4>getLastCollectionStartTime</h4>
	<pre class="methodSignature">long getLastCollectionStartTime()</pre>
	<div class="block">Returns the start time <em>in milliseconds</em> of the last garbage
	collection that was carried out by this collector.</div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>the start time of the most recent collection</dd>
	</dl>
	</li>
	</ul>
	<a id="getLastCollectionEndTime()">
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	<h4>getLastCollectionEndTime</h4>
	<pre class="methodSignature">long getLastCollectionEndTime()</pre>
	<div class="block">Returns the end time <em>in milliseconds</em> of the last garbage
	collection that was carried out by this collector.</div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>the end time of the most recent collection</dd>
	</dl>
	</li>
	</ul>
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	<h4>getMemoryUsed</h4>
	<pre class="methodSignature">long getMemoryUsed()</pre>
	<div class="block">Returns the amount of heap memory used by objects that are managed
	by the collector corresponding to this bean object.</div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>memory used in bytes</dd>
	</dl>
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	<h4>getTotalMemoryFreed</h4>
	<pre class="methodSignature">long getTotalMemoryFreed()</pre>
	<div class="block">Returns the cumulative total amount of memory freed, in bytes, by the
	garbage collector corresponding to this bean object.</div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>memory freed in bytes</dd>
	</dl>
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	</ul>
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	<h4>getTotalCompacts</h4>
	<pre class="methodSignature">long getTotalCompacts()</pre>
	<div class="block">Returns the cumulative total number of compacts that was performed by
	garbage collector corresponding to this bean object.</div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>number of compacts performed</dd>
	</dl>
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