Type cannot be serialized only in FireFox in Development Mode.

WARNING: Exception of type com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: Type 'com.myDTO' 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 deserialized. 

I receive this only if running the code in Development Mode.

If I run absolutely the same code in the same browser on the same machine in normal mode - I do not get this error and everything works fine. 

My classes really implement Serializable, not isSerializable, but usually this works ok, whats up with FF development mode?..

Firefox 15.0.1, Macos 10.7.4

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/wwl9-U-4tKgJ.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to google-web-toolkit+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.