java.io.NotSerializableException: org.jboss.resteasy.client.core.BaseClientResponse

Issue

On high loads, when an remote EJB is being looked up, there are serializable exceptions seen:

Caused by: java.io.NotSerializableException: org.jboss.resteasy.client.core.BaseClientResponse
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:251) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:129) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.cloneFields(SerializingCloner.java:345) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:305) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:249) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:129) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.cloneFields(SerializingCloner.java:345) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:297) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:249) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:129) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.cloneFields(SerializingCloner.java:345) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:297) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:281) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:249) ~[na:na]
    at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:129) ~[na:na]
    at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:295) ~[jboss-as-ejb3-7.3.2.Final-redhat-2.jar!/:7.3.2.Final-redhat-2]
    ... 78 common frames omitted

This happens for the first time , but on retying the lookup, everything is fine.