different cache manager impl : LocalCacheManager and ClusteredCacheManager

consider having two CacheManagers impl: LocalCacheaManager and ClusteredCacheManager.
This is in order to offer a more clear API to the user, who might want to use a specific cache manager.
Currently, this is achieved through usage of GlobalConfiguration.getClusterDefault()/getNonClusterDefault(), but this is not very clear to the user.
Also, after trying to create an replicated cache on a cache manager build on an "getNonClusterDefault" config, there will be an unclear error message:
""Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.horizon.util.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:129)
... 35 more
Caused by: java.lang.NullPointerException
at org.horizon.statetransfer.StateTransferManagerImpl.start(StateTransferManagerImpl.java:116)
... 40 more
Error should be more specific, something like: "You're not allowed to deploy an clustered cache on an local cache manager".
public void testCreateReplicatedCacheOnLocalCM()

{ GlobalConfiguration globalConfiguration = GlobalConfiguration.getNonClusteredDefault(); globalConfiguration.setAllowDuplicateDomains(true); CacheManager dcm1 = new DefaultCacheManager(globalConfiguration); CacheManager dcm2 = new DefaultCacheManager(globalConfiguration); Configuration conf = new Configuration(); conf.setCacheMode(Configuration.CacheMode.REPL_SYNC); dcm1.defineCache("replicated", conf); dcm2.defineCache("replicated", conf); dcm1.getCache("replicated"); dcm2.getCache("replicated"); }