When attempting to upgrade my build's wrapper task to 0.9, it attempts to download http://dist.codehaus.org/gradle/gradle-0.9-bin.zip, which doesn't exist.

org.gradle.api.tasks.wrapper.Wrapper.DEFAULT_URL_ROOT is hard-coded to "http://dist.codehaus.org/gradle", whereas the distro is actually available through the http://gradle.artifactoryonline.com/gradle/distributions.

It is possible to workaround this by setting the urlRoot property of the wrapper task explicitly, but the default should probably be able to handle creating a wrapper for the current version (or even multiple versions) out of the box.