func NewSchemasBuilder() *SchemasBuilder {
	s := Schemas{
		byCollection: make(map[config.GroupVersionKind]resource.Schema),
	}

	return &SchemasBuilder{
		schemas: s,
	}
}

// Add a new collection to the schemas.
func (b *SchemasBuilder) Add(s resource.Schema) error {
	if _, found := b.schemas.byCollection[s.GroupVersionKind()]; found {

    }

    def "circular evaluation of #collection property is detected"() {
        buildFile """
            def myCollection = objects.${initializer}(String)
            def p = myCollection.map { it.join(", ") }
            myCollection.add(p)

            myCollection.get()
        """

        when:
        fails "help"

        then: