java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@4e9376c8[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@1a24b7c1[Wrapped task = com.hazelcast.client.impl.connection.tcp.TcpClientConnectionManager$ConnectToAllClusterMembersTask@7d6ccf99]], because client is shutting down...