Github user clebertsuconic commented on the issue:
https://github.com/apache/activemq-artemis/pull/573
@jbertram
I will merge it, but if I added this following line in one of these tests:
```java
@Rule
public ThreadLeakCheckRule leakCheckRule = new ThreadLeakCheckRule();
```
The test will have leaked threads from some executor:
```
LEAKING THREADS
=============================================================================
Thread Thread[NioProcessor-1,5,main] is still alive with the following
stackTrace:
sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198)
sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:103)
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
org.apache.mina.transport.socket.nio.NioProcessor.select(NioProcessor.java:69)
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:961)
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745)
=============================================================================
Thread Thread[pool-4-thread-1,5,main] is still alive with the following
stackTrace:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467)
org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.fetchTask(UnorderedThreadPoolExecutor.java:461)
org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.run(UnorderedThreadPoolExecutor.java:413)
java.lang.Thread.run(Thread.java:745)
=============================================================================
Thread Thread[Thread-1,5,main] is still alive with the following stackTrace:
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
java.net.SocketInputStream.read(SocketInputStream.java:170)
java.net.SocketInputStream.read(SocketInputStream.java:141)
java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
java.io.BufferedInputStream.read(BufferedInputStream.java:345)
com.sun.jndi.ldap.Connection.run(Connection.java:860)
java.lang.Thread.run(Thread.java:745)
```
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