I started migration today on a 300 KLOC project and all CSS files had been converted without any major issue using the Css2Gss tool. The only exotic issue I had was a NullPointerException for *.css files that do not have any content: https://code.google.com/p/google-web-toolkit/issues/detail?id=9131
After conversion I was a bit annoyed updating all the @Source annotations still pointing to *.css files. You can't blindly run a global string replace of .css -> .gss so this took some time. Also I did not add any gss=true attributes to UiBinder files because we simply have a lot of them and I don't want to do that work. I assume that this attribute is not needed anymore anyways once the GssResourceGenerator is enabled by default for UiBinder <ui:style> elements. Currently we run the app with CssResource.enableGss = true and CssResource.conversionMode = strict and do not have any issues. Overall it took less than an hour to achieve that state. So I think I would prefer the second option (delete the property and make GSS the default everywhere) but it would be nice if GWT would prefer a matching *.gss file for any *.css file referenced in @Source annotations (may the css file exist or not on disk) and print a warning in which ClientBundles that occurred. That way people could execute the Css2Gss tool and can start using 2.8. Deleting css files and cleaning up @Source annotations can then be done afterwards in smaller steps. -- J. -- You received this message because you are subscribed to the Google Groups "GWT Contributors" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit-contributors+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit-contributors/8efa270c-e7fa-4337-9e46-60d25e393e05%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.