GWT: CSS file defined in module definition file (gwt.xml) doesn't work? - gwt

Question

From GWT tutorial (http://www.gwtproject.org/doc/latest/DevGuideUiCss.html), we know there are multiple approaches for associating CSS files with your module. Therein, one way is using the <stylesheet> element in the module XML file.
When I used the way to do it, I got the warning message below. It seems the way doesn't work.
Here's the contents of module1.gwt.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.7.0//EN" "http://google-web-toolkit.googlecode.com/svn/tags/2.7.0/distro-source/core/src/gwt-module.dtd">
<module rename-to="entry1">
<inherits name="com.google.gwt.user.User" />
<inherits name='com.google.gwt.user.theme.clean.Clean'/>
<source path="client" />
<entry-point class="com.jst.gwt2.client.Entry1"></entry-point>
<stylesheet src="../entry1.css" />
<source path='client' />
<source path='rpc' />
</module>
Here's the warning message:
GET /entry1.css
[WARN] ignored get request: /entry1.css
[WARN] not handled: /entry1.css

Answer 1

quoting #Thomas Broyer:
to get the full explanation click here
You'll have to change either
the path to your CSS (e.g. /entry1.css, but that won't necessarily work once deployed in production)
the location of your CSS (e.g. put it in your module's public path and reference it as <stylesheet src="entry1.css"/>)
the way you load it (e.g. inject it from your onModuleLoad, either as a StyleElement added to the Document; or possibly as a TextResource
that you inject using StyleInjector –and use one less request to the
server)