One nit. Per the discussion on this thread, it would be best if StringBufferTest.testStringBuilder() had a call to each of the new methods.
Otherwise , LGTM. -Lex --~--~---------~--~----~------------~-------~--~----~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~----------~----~----~----~------~----~------~--~---
