Thanks for such an instant reply!
Unfortunatelly AS7 upgrade to 7.1.2 doesn't solve the problem. In the internals of Configuration class for the target cache in run time storeAsBinary is not enabled despite the fact that storeValuesAsBinary is true as storeKeysAsBinary is also true. So MarshalledValueInterceptor doesn't created in InterceptorChainFactory that follows to the same ClassCastException on getting value.
Here is our cache configuration:
<cache-container name="lognex" default-cache="DefaultLCache" start="EAGER">
<transport stack="tcp" lock-timeout="60000"/>
<replicated-cache name="DefaultLCache" mode="SYNC" batching="true" jndi-name="java:jboss/infinispan/cache/DefaultLCache" start="EAGER">
<transaction mode="NON_XA"/>
</replicated-cache>
</cache-container>