Currency Pairs

I have discovered a bug with the partial Orderbook but I could not find the cause:
You can reproduce the bug using the following steps:
set the constant PARTIAL_ORDERBOOK_SIZE  in KrakenPollingMarketDataService to a low value like 20:
Execute the FullDepthDemo and the PartialDepthDemo.
Both will return the full OrderBook of Kraken.
I think the parameters are set correctly.