read Grails config parameter

I've added the following parameter in Config.groovy

storeFront.cms.endpoint = "http://10.60.33.51:27110/file_source"

I'm trying to read it using:

ConfigurationHolder.config('storeFront.cms.endpoint')

I read somewhere that configuration parameters should be read using the grailsApplication variable that is available in taglibs and controllers, but in my case I'm trying to read it from a class under src/groovy.

When the application starts up I get the error:

groovy.lang.MissingMethodException: No signature of method: groovy.util.ConfigObject.call() 
is applicable for argument types: (java.lan开发者_Python百科g.String) values: [storeFront.cms.endpoint]

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Shouldn't that be:

ConfigurationHolder.config.storeFront.cms.endpoint

And yeah ConfigurationHolder is deprecated in Grails 2.0