According to:
http://grails.org/doc/latest/guide/3.%20Configuration.html#3.7.8 Maven Integration
Grails' dependency resolution is disabled when using Maven and resolution instead occurs from the pom. That doesn't seem to apply to the inherited/framework dependencies from what I can tell.
E.g. I'm trying to upgrade the version of slf4j from 1.5.8 -- which is what Grails imports -- to 1.6.1 so I can use the latest version of logback. I include the proper version of slf4j in my pom, yet when I attempt a 'mvn install', I get a warning about incompatible bindings. I've verified through the maven dependency plugin that no other version of slf4j is being included.
I tried adding an excludes in BuildConfig.groovy:
inherited("global") {
excludes "slf4j-api"
}
But that didn't appear to work.