no source code available with incubator

I'm probably missing something really stupid and obvious. I'm trying to use the scrolltable in incubator. I'm using eclipse, and have the jar file added (it shows up under Referenced Libraries). I added the inherits tags to my .gwt.xml like so ... inherits

RPC/Serialization problem with StockWatcher tutorial

I'm going through the StockWatcher tutorial and I get to the RPC part (http://code.google.com/webtoolkit/tutorials/1.6/RPC.html). At the first test point I get this error message as expected ... [ERROR] Type 'com.google.gwt.sample.stockwatcher.client.StockPrice' was not serializable and has