Seeing JGRP000027 RejectedExecutionException for UNICAST3 in EAP 7 Cluster.

Issue

Lots of Jgroups Messages tasks in hibernate channel caused in the java.util.concurrent.RejectedExecutionException.

Exception Strack Trace :

ERROR [org.jgroups.protocols.TCP] (thread-2) JGRP000027: failed passing message up: java.util.concurrent.RejectedExecutionException: Task org.jgroups.protocols.UNICAST3$3@60b39aa2 rejected from java.util.concurrent.ThreadPoolExecutor@66daea84[Running, pool size = 30, active threads = 3, queued tasks = 0, completed tasks = 6729459]
        at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)
        at org.jgroups.util.ShutdownRejectedExecutionHandler.rejectedExecution(ShutdownRejectedExecutionHandler.java:33)
        at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)
        at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1379)
        at org.jgroups.protocols.UNICAST3.processInternalMessage(UNICAST3.java:842)
        at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:796)
        at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:433)
        at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:649)
        at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:155)
        at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:200)
        at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:325)
        at org.jgroups.protocols.MERGE3.up(MERGE3.java:292)
        at org.jgroups.protocols.Discovery.up(Discovery.java:296)
        at org.jgroups.protocols.TP.passMessageUp(TP.java:1658)
        at org.jgroups.protocols.TP$SingleMessageHandler.run(TP.java:1876)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.jboss.as.clustering.jgroups.ClassLoaderThreadFactory.lambda$newThread$0(ClassLoaderThreadFactory.java:52)
        at java.lang.Thread.run(Thread.java:748)