LGTM I'm familiar with some of the dev mode stuff, so get a second opinion from jat.
http://gwt-code-reviews.appspot.com/361801/diff/1/4 File dev/core/src/com/google/gwt/dev/DevModeBase.java (right): http://gwt-code-reviews.appspot.com/361801/diff/1/4#newcode168 dev/core/src/com/google/gwt/dev/DevModeBase.java:168: public ArgHandlerBlacklist() { Is this constructor necessary? Why wouldn't it exist by default? http://gwt-code-reviews.appspot.com/361801/diff/1/4#newcode416 dev/core/src/com/google/gwt/dev/DevModeBase.java:416: public ArgHandlerWhitelist() { Necessary? http://gwt-code-reviews.appspot.com/361801/show -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
