@Override
    protected BulkSet readValue(final Buffer buffer, final GraphBinaryReader context) throws IOException {
        throw new UnsupportedOperationException("BulkSet is used as an internal serializer for bulk lists, deserializing into BulkSet is not supported");
    }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/binary/types/BulkSetSerializer.java