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copied!<p>It's hard to analyse the reason with such a few information.</p> <p>According to the report, it maybe db connections problem.</p> <p>TRY:</p> <ul> <li><p>Confirm what're being hold by <code>ConnectionQueueStatsProvider</code>(probably java.util.concurrent.ConcurrentHashMap$Segment[]).</p></li> <li><p>Open the source code, find out what's in <code>ConnectionQueueStatsProvider's ConcurrentHashMap</code>.</p></li> </ul> <hr> <p>If java.util.concurrent.ConcurrentHashMap$Segment[] token most of the space, you app may have db connection problems.</p> <h3>Java.util.concurrent.ConcurrentHashMap is only one usage in ConnectionQueueStatsProvider's:</h3> <pre><a href="http://grepcode.com/file/repo1.maven.org/maven2/org.glassfish.core/kernel/3.0.1/com/sun/enterprise/v3/services/impl/monitor/stats/ConnectionQueueStatsProvider.java#66" rel="nofollow">66</a> <b>private</b> <b>final</b> <a href="http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/Map.java#Map" rel="nofollow" title="java.util.Map">Map</a><<a href="http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/Integer.java#Integer" rel="nofollow" title="java.lang.Integer">Integer</a>, <a href="http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/Long.java#Long" rel="nofollow" title="java.lang.Long">Long</a>> openConnectionsCount = <b>new</b> <a href="http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/concurrent/ConcurrentHashMap.java#ConcurrentHashMap" rel="nofollow" title="java.util.concurrent.ConcurrentHashMap">ConcurrentHashMap</a><<a href="http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/Integer.java#Integer" rel="nofollow" title="java.lang.Integer">Integer</a>, <a href="http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/Long.java#Long" rel="nofollow" title="java.lang.Long">Long</a>>();<br/></pre> <p>Try to check you code and close the db connections.</p>

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