public boolean noCache() {
        if (noCache != null) {
            return noCache;
        }
        if (nocache != null) {
            return nocache;
        }
        return false;
    }
Use {@link #getAllAssemblyConfigurations()} unless you specifically want the configuration defined only by <code>assemblies</code>.
src/main/java/io/fabric8/maven/docker/config/BuildImageConfiguration.java