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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <html lang="en"> <head>  <title>JMXEnabledThreadPoolExecutor (apache-cassandra API)</title> <meta name="date" content="2014-09-07"> <link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style"> </head> <body> <script type="text/javascript"> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript>  <div class="topNav"><a name="navbar_top">  </a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow">  </a> <ul class="navList" title="Navigation"> <li><a href="../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/JMXEnabledThreadPoolExecutor.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../deprecated-list.html">Deprecated</a></li> <li><a href="../../../../index-all.html">Index</a></li> <li><a href="../../../../help-doc.html">Help</a></li> </ul> </div> <div class="subNav"> <ul class="navList"> <li><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledSharedExecutorPool.JMXEnabledSEPExecutorMBean.html" title="interface in org.apache.cassandra.concurrent"><span class="strong">Prev Class</span></a></li> <li><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html" title="interface in org.apache.cassandra.concurrent"><span class="strong">Next Class</span></a></li> </ul> <ul class="navList"> <li><a href="../../../../index.html?org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html" target="_top">Frames</a></li> <li><a href="JMXEnabledThreadPoolExecutor.html" target="_top">No Frames</a></li> </ul> <ul class="navList" id="allclasses_navbar_top"> <li><a href="../../../../allclasses-noframe.html">All Classes</a></li> </ul> <div> <script type="text/javascript"> </script> </div> <div> <ul class="subNavList"> <li>Summary: </li> <li><a href="#nested_classes_inherited_from_class_java.util.concurrent.ThreadPoolExecutor">Nested</a> | </li> <li><a href="#fields_inherited_from_class_org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor">Field</a> | </li> <li><a href="#constructor_summary">Constr</a> | </li> <li><a href="#method_summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li>Field | </li> <li><a href="#constructor_detail">Constr</a> | </li> <li><a href="#method_detail">Method</a></li> </ul> </div> <a name="skip-navbar_top">  </a></div>   <div class="header"> <div class="subTitle">org.apache.cassandra.concurrent</div> <h2 title="Class JMXEnabledThreadPoolExecutor" class="title">Class JMXEnabledThreadPoolExecutor</h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li>java.util.concurrent.AbstractExecutorService</li> <li> <ul class="inheritance"> <li>java.util.concurrent.ThreadPoolExecutor</li> <li> <ul class="inheritance"> <li><a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html" title="class in org.apache.cassandra.concurrent">org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor</a></li> <li> <ul class="inheritance"> <li>org.apache.cassandra.concurrent.JMXEnabledThreadPoolExecutor</li> </ul> </li> </ul> </li> </ul> </li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt>All Implemented Interfaces:</dt> <dd>java.util.concurrent.Executor, java.util.concurrent.ExecutorService, <a href="../../../../org/apache/cassandra/concurrent/IExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">IExecutorMBean</a>, <a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">JMXEnabledThreadPoolExecutorMBean</a>, <a href="../../../../org/apache/cassandra/concurrent/TracingAwareExecutorService.html" title="interface in org.apache.cassandra.concurrent">TracingAwareExecutorService</a></dd> </dl> <dl> <dt>Direct Known Subclasses:</dt> <dd><a href="../../../../org/apache/cassandra/concurrent/JMXConfigurableThreadPoolExecutor.html" title="class in org.apache.cassandra.concurrent">JMXConfigurableThreadPoolExecutor</a></dd> </dl> <hr> <br> <pre>public class <span class="strong">JMXEnabledThreadPoolExecutor</span> extends <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html" title="class in org.apache.cassandra.concurrent">DebuggableThreadPoolExecutor</a> implements <a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">JMXEnabledThreadPoolExecutorMBean</a></pre> <div class="block">This is a wrapper class for the <i>ScheduledThreadPoolExecutor</i>. It provides an implementation for the <i>afterExecute()</i> found in the <i>ThreadPoolExecutor</i> class to log any unexpected Runtime Exceptions.</div> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList">  <ul class="blockList"> <li class="blockList"><a name="nested_class_summary">  </a> <h3>Nested Class Summary</h3> <ul class="blockList"> <li class="blockList"><a name="nested_classes_inherited_from_class_java.util.concurrent.ThreadPoolExecutor">  </a> <h3>Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor</h3> <code>java.util.concurrent.ThreadPoolExecutor.AbortPolicy, java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy, java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy, java.util.concurrent.ThreadPoolExecutor.DiscardPolicy</code></li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="field_summary">  </a> <h3>Field Summary</h3> <ul class="blockList"> <li class="blockList"><a name="fields_inherited_from_class_org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor">  </a> <h3>Fields inherited from class org.apache.cassandra.concurrent.<a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html" title="class in org.apache.cassandra.concurrent">DebuggableThreadPoolExecutor</a></h3> <code><a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#blockingExecutionHandler">blockingExecutionHandler</a>, <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#logger">logger</a></code></li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="constructor_summary">  </a> <h3>Constructor Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> <caption><span>Constructors</span><span class="tabEnd"> </span></caption> <tr> <th class="colOne" scope="col">Constructor and Description</th> </tr> <tr class="altColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#JMXEnabledThreadPoolExecutor(int,%20int,%20long,%20java.util.concurrent.TimeUnit,%20java.util.concurrent.BlockingQueue,%20org.apache.cassandra.concurrent.NamedThreadFactory,%20java.lang.String)">JMXEnabledThreadPoolExecutor</a></strong>(int corePoolSize, int maxPoolSize, long keepAliveTime, java.util.concurrent.TimeUnit unit, java.util.concurrent.BlockingQueue<java.lang.Runnable> workQueue, <a href="../../../../org/apache/cassandra/concurrent/NamedThreadFactory.html" title="class in org.apache.cassandra.concurrent">NamedThreadFactory</a> threadFactory, java.lang.String jmxPath)</code> </td> </tr> <tr class="rowColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#JMXEnabledThreadPoolExecutor(int,%20long,%20java.util.concurrent.TimeUnit,%20java.util.concurrent.BlockingQueue,%20org.apache.cassandra.concurrent.NamedThreadFactory,%20java.lang.String)">JMXEnabledThreadPoolExecutor</a></strong>(int corePoolSize, long keepAliveTime, java.util.concurrent.TimeUnit unit, java.util.concurrent.BlockingQueue<java.lang.Runnable> workQueue, <a href="../../../../org/apache/cassandra/concurrent/NamedThreadFactory.html" title="class in org.apache.cassandra.concurrent">NamedThreadFactory</a> threadFactory, java.lang.String jmxPath)</code> </td> </tr> <tr class="altColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#JMXEnabledThreadPoolExecutor(org.apache.cassandra.concurrent.Stage)">JMXEnabledThreadPoolExecutor</a></strong>(<a href="../../../../org/apache/cassandra/concurrent/Stage.html" title="enum in org.apache.cassandra.concurrent">Stage</a> stage)</code> </td> </tr> <tr class="rowColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#JMXEnabledThreadPoolExecutor(java.lang.String)">JMXEnabledThreadPoolExecutor</a></strong>(java.lang.String threadPoolName)</code> </td> </tr> <tr class="altColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#JMXEnabledThreadPoolExecutor(java.lang.String,%20int)">JMXEnabledThreadPoolExecutor</a></strong>(java.lang.String threadPoolName, int priority)</code> </td> </tr> <tr class="rowColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#JMXEnabledThreadPoolExecutor(java.lang.String,%20java.lang.String)">JMXEnabledThreadPoolExecutor</a></strong>(java.lang.String threadPoolName, java.lang.String jmxPath)</code> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_summary">  </a> <h3>Method Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> <caption><span>Methods</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Method and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#getCompletedTasks()">getCompletedTasks</a></strong>()</code> <div class="block">Get the number of completed tasks</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#getCoreThreads()">getCoreThreads</a></strong>()</code> <div class="block">Returns core pool size of thread pool.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#getCurrentlyBlockedTasks()">getCurrentlyBlockedTasks</a></strong>()</code> <div class="block">Get the number of tasks currently blocked, waiting to be accepted by the executor (because all threads are busy and the backing queue is full).</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#getMaximumThreads()">getMaximumThreads</a></strong>()</code> <div class="block">Returns maximum pool size of thread pool.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#getPendingTasks()">getPendingTasks</a></strong>()</code> <div class="block">Get the number of tasks waiting to be executed</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#getTotalBlockedTasks()">getTotalBlockedTasks</a></strong>()</code> <div class="block">Get the number of tasks that had blocked before being accepted (or rejected).</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>protected void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#onFinalAccept(java.lang.Runnable)">onFinalAccept</a></strong>(java.lang.Runnable task)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>protected void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#onFinalRejection(java.lang.Runnable)">onFinalRejection</a></strong>(java.lang.Runnable task)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>protected void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#onInitialRejection(java.lang.Runnable)">onInitialRejection</a></strong>(java.lang.Runnable task)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#setCoreThreads(int)">setCoreThreads</a></strong>(int number)</code> <div class="block">Allows user to resize core pool size of the thread pool.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#setMaximumThreads(int)">setMaximumThreads</a></strong>(int number)</code> <div class="block">Allows user to resize maximum size of the thread pool.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#shutdown()">shutdown</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.util.List<java.lang.Runnable></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutor.html#shutdownNow()">shutdownNow</a></strong>()</code> </td> </tr> </table> <ul class="blockList"> <li class="blockList"><a 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href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#createWithMaximumPoolSize(java.lang.String,%20int,%20int,%20java.util.concurrent.TimeUnit)">createWithMaximumPoolSize</a>, <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#execute(java.lang.Runnable)">execute</a>, <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#execute(java.lang.Runnable,%20org.apache.cassandra.tracing.TraceState)">execute</a>, <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#extractThrowable(java.lang.Runnable)">extractThrowable</a>, <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#handleOrLog(java.lang.Throwable)">handleOrLog</a>, <a href="../../../../org/apache/cassandra/concurrent/DebuggableThreadPoolExecutor.html#logExceptionsAfterExecute(java.lang.Runnable,%20java.lang.Throwable)">logExceptionsAfterExecute</a>, <a 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getLargestPoolSize, getMaximumPoolSize, getPoolSize, getQueue, getRejectedExecutionHandler, getTaskCount, getThreadFactory, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, remove, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, terminated, toString</code></li> </ul> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.util.concurrent.AbstractExecutorService">  </a> <h3>Methods inherited from class java.util.concurrent.AbstractExecutorService</h3> <code>invokeAll, invokeAll, invokeAny, invokeAny, submit, submit, submit</code></li> </ul> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object">  </a> <h3>Methods inherited from class java.lang.Object</h3> <code>clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li> </ul> <ul class="blockList"> <li class="blockList"><a 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href="../../../../org/apache/cassandra/concurrent/NamedThreadFactory.html" title="class in org.apache.cassandra.concurrent">NamedThreadFactory</a> threadFactory, java.lang.String jmxPath)</pre> </li> </ul> <a name="JMXEnabledThreadPoolExecutor(org.apache.cassandra.concurrent.Stage)">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>JMXEnabledThreadPoolExecutor</h4> <pre>public JMXEnabledThreadPoolExecutor(<a href="../../../../org/apache/cassandra/concurrent/Stage.html" title="enum in org.apache.cassandra.concurrent">Stage</a> stage)</pre> </li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_detail">  </a> <h3>Method Detail</h3> <a name="shutdown()">  </a> <ul class="blockList"> <li class="blockList"> <h4>shutdown</h4> <pre>public void shutdown()</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code>shutdown</code> in interface <code>java.util.concurrent.ExecutorService</code></dd> <dt><strong>Overrides:</strong></dt> <dd><code>shutdown</code> in class <code>java.util.concurrent.ThreadPoolExecutor</code></dd> </dl> </li> </ul> <a name="shutdownNow()">  </a> <ul class="blockList"> <li class="blockList"> <h4>shutdownNow</h4> <pre>public java.util.List<java.lang.Runnable> shutdownNow()</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code>shutdownNow</code> in interface <code>java.util.concurrent.ExecutorService</code></dd> <dt><strong>Overrides:</strong></dt> <dd><code>shutdownNow</code> in class <code>java.util.concurrent.ThreadPoolExecutor</code></dd> </dl> </li> </ul> <a name="getCompletedTasks()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getCompletedTasks</h4> <pre>public long getCompletedTasks()</pre> <div class="block">Get the number of completed tasks</div> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/concurrent/IExecutorMBean.html#getCompletedTasks()">getCompletedTasks</a></code> in interface <code><a href="../../../../org/apache/cassandra/concurrent/IExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">IExecutorMBean</a></code></dd> </dl> </li> </ul> <a name="getPendingTasks()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getPendingTasks</h4> <pre>public long getPendingTasks()</pre> <div class="block">Get the number of tasks waiting to be executed</div> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/concurrent/IExecutorMBean.html#getPendingTasks()">getPendingTasks</a></code> in interface <code><a href="../../../../org/apache/cassandra/concurrent/IExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">IExecutorMBean</a></code></dd> </dl> </li> </ul> <a name="getTotalBlockedTasks()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getTotalBlockedTasks</h4> <pre>public int getTotalBlockedTasks()</pre> <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html#getTotalBlockedTasks()">JMXEnabledThreadPoolExecutorMBean</a></code></strong></div> <div class="block">Get the number of tasks that had blocked before being accepted (or rejected).</div> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html#getTotalBlockedTasks()">getTotalBlockedTasks</a></code> in interface <code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">JMXEnabledThreadPoolExecutorMBean</a></code></dd> </dl> </li> </ul> <a name="getCurrentlyBlockedTasks()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getCurrentlyBlockedTasks</h4> <pre>public int getCurrentlyBlockedTasks()</pre> <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html#getCurrentlyBlockedTasks()">JMXEnabledThreadPoolExecutorMBean</a></code></strong></div> <div class="block">Get the number of tasks currently blocked, waiting to be accepted by the executor (because all threads are busy and the backing queue is full).</div> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html#getCurrentlyBlockedTasks()">getCurrentlyBlockedTasks</a></code> in interface <code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">JMXEnabledThreadPoolExecutorMBean</a></code></dd> </dl> </li> </ul> <a name="getCoreThreads()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getCoreThreads</h4> <pre>public int getCoreThreads()</pre> <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html#getCoreThreads()">JMXEnabledThreadPoolExecutorMBean</a></code></strong></div> <div class="block">Returns core pool size of thread pool.</div> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html#getCoreThreads()">getCoreThreads</a></code> in interface <code><a href="../../../../org/apache/cassandra/concurrent/JMXEnabledThreadPoolExecutorMBean.html" title="interface in org.apache.cassandra.concurrent">JMXEnabledThreadPoolExecutorMBean</a></code></dd> </dl> </li> </ul> <a name="setCoreThreads(int)">  </a> <ul class="blockList"> <li class="blockList"> <h4>setCoreThreads</h4> <pre>public void setCoreThreads(int number)</pre> <div class="block"><strong>Description copied from interface: <code><a 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