hz:map name="mymap"  max-idle-seconds="0"  in-memory-format="BINARY"
backup-count="0" max-size="0" eviction-percentage="30" read-backup-data="true"
eviction- policy="NONE" />*

com.hazelcast.nio.serialization.HazelcastSerializationException:
    java.lang.ClassNotFoundException:com.Customer

IMap<String, Customer> objectMap = hazelcast.getMap("mymap");
Customer customer = new Customer("gupta", 33);
objectMap.put(key , customer);