Fixed ZkCommunicationErrorProcessFuture to use j.u.c.ConcurrentHashMap
@@ -23,6 +23,7 @@ import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
import org.apache.ignite.IgniteLogger;
import org.apache.ignite.cluster.ClusterNode;
import org.apache.ignite.internal.IgniteInternalFuture;
@@ -35,7 +36,6 @@ import org.apache.ignite.lang.IgniteInClosure;
import org.apache.ignite.lang.IgniteUuid;
import org.apache.ignite.spi.IgniteSpiTimeoutObject;
import org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi;
-import org.jboss.netty.util.internal.ConcurrentHashMap;
import org.jetbrains.annotations.Nullable;
/**
