In SerializationMarshaller I see this:

if (log.isTraceEnabled())

{ log.trace("Unmarshalled bytes: " + Arrays.toString(bytes) + " and returning object: " + o); }

Using Arrays.toString() is Ok for most cases but if the serialized version is too big, it'd be hard to read trace logs.

Instead, you should prob use a similar method to the one used by the HotRod/Memcached or when lazy deserialization is used where I call o.i.u.Util.printArray. This methods prints the byte array partially, only the first 10 bytes I believe, and if -Dinfinispan.arrays.debug=true is passed, it then prints the full array.