RPC Tutorial - Issue with Serialization

[docwarems]

Hello, the GWT Website and it's tutorial is excellent. Congratulations for that!

When you run the example at http://www.gwtproject.org/doc/latest/tutorial/RPC.html, for me in super dev mode (embedded Jetty), I get the following error during the RPC call.

com.google.gwt.user.client.rpc.SerializationException: Type '[Lcom.google.gwt.sample.stockWatcher.client.StockPrice;' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer. For security purposes, this type will not be serialized.

However, I do not get this error in production mode. If I let my class to be serialized implement the GWT IsSerializable rather than java.io.Serializable, both run modes work fine.

I don't know if this is a documentation issue or a GWT issue. I just wanted to comment that in order to keep the tutorial as perfect as it is.

Best regards Michael