Improve test robustness and park flaky tests.

src/test/java/net/openhft/chronicle/map/ChannelReplicationTest.java

@@ -26,6 +26,7 @@ import org.junit.*;
 import java.io.Closeable;
 import java.io.IOException;
 import java.net.InetSocketAddress;
+import java.util.Set;
 
 import static java.util.concurrent.TimeUnit.SECONDS;
 import static org.junit.Assert.assertTrue;
@@ -91,6 +92,17 @@ public class ChannelReplicationTest {
         System.gc();
     }
 
+    Set<Thread> threads;
+
+    @Before
+    public void sampleThreads() {
+        threads = Thread.getAllStackTraces().keySet();
+    }
+
+    @After
+    public void checkThreadsShutdown() {
+        StatelessClientTest.checkThreadsShutdown(threads);
+    }
 
 
     @Test