After removing @NoDynamicObject in DefaultRepositoryHandler a couple of tests start failing. There is the following bug:

The Maven plugin adds for example the following: installUpload.getRepositories().mavenInstaller(WrapUtil.toMap("name", RepositoryHandler.DEFAULT_MAVEN_INSTALLER_NAME));

With @NoDynamicObject I can access: repositories."$RepositoryHandler.DEFAULT_MAVEN_INSTALLER_NAME"

Without the annotation the above does not work any longer. Without the annotation the ContainerDynamicObject seems no longer to be taken into consideration.