Metaspace memory leak with infinispan ------------------------------------- Key: ISPN-6375 URL: https://issues.jboss.org/browse/ISPN-6375 Project: Infinispan Issue Type: Feature Request Components: Core Affects Versions: 8.1.2.Final Reporter: Andrej Dmitrenko Attachments: memory-analyzer.png I use infinispan for embedded cache and criteria query in cache. It is works great! I start infinispan in my application and call embeddedCacheManager.stop() at application destroy. I run my application in oracle weblogic 12.1.3 server. And after redeploy my application I see metaspace memory leak. I have checked heap dump in memory analizer. The cause in thread local variable threadCounterHashCode in org.infinispan.commons.util.concurrent.jdk8backported.EquivalentConcurrentHashMapV8$CounterHashCode class After undeploy aplication there is a thread which keep thread local reference to threadCounterHashCode, and threadCounterHashCode keep link to classloader and that's why classloader cannot be removed from metaspace memory. I cannot control this thread. I have got suggestion in forum to create ticket in JIRA (https://developer.jboss.org/message/952848) Please do something with class org.infinispan.commons.util.concurrent.jdk8backported.EquivalentConcurrentHashMapV8$CounterHashCode to avoid metaspace memory leak in cases when user does not control thread pool