* lazy evaluation of the fallback instance, using {@link Optional#or(Supplier)
   * first.or(supplier)}.
   *
   * <p><b>Java 9 users:</b> use {@link Objects#requireNonNullElse} instead. For lazy evaluation of
   * the fallback, use {@link Objects#requireNonNullElseGet Objects.requireNonNullElseGet(first, ()
   * -> second)}}.
   *
   * @return {@code first} if it is non-null; otherwise {@code second} if it is non-null

        "it.unimi.dsi.fastutil.objects.Object2IntMap",
        "it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap",
        "it.unimi.dsi.fastutil.objects.Object2ObjectLinkedOpenHashMap",
        "it.unimi.dsi.fastutil.objects.Object2ObjectOpenCustomHashMap",
        "it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap",
        "it.unimi.dsi.fastutil.objects.ObjectOpenCustomHashSet",

   * lazy evaluation of the fallback instance, using {@link Optional#or(Supplier)
   * first.or(supplier)}.
   *
   * <p><b>Java 9 users:</b> use {@link Objects#requireNonNullElse} instead. For lazy evaluation of
   * the fallback, use {@link Objects#requireNonNullElseGet Objects.requireNonNullElseGet(first, ()
   * -> second)}}.
   *
   * @return {@code first} if it is non-null; otherwise {@code second} if it is non-null

    void notManaged()
}
abstract class DefaultNestedType implements NestedType {
    ...
}

class Example {
    private final NestedType nested
    Example(ObjectFactory objects) {
       this.nested = objects.newInstance(DefaultNestedType.class)
    }

    @Nested
    NestedType getNestedProperty() {
        return nested;
    }
}
```

You should prefer to use managed types when possible. 

    }
    CacheBuilderSpec that = (CacheBuilderSpec) obj;
    return Objects.equals(initialCapacity, that.initialCapacity)
        && Objects.equals(maximumSize, that.maximumSize)
        && Objects.equals(maximumWeight, that.maximumWeight)
        && Objects.equals(concurrencyLevel, that.concurrencyLevel)
        && Objects.equals(keyStrength, that.keyStrength)
        && Objects.equals(valueStrength, that.valueStrength)

    }
    CacheBuilderSpec that = (CacheBuilderSpec) obj;
    return Objects.equals(initialCapacity, that.initialCapacity)
        && Objects.equals(maximumSize, that.maximumSize)
        && Objects.equals(maximumWeight, that.maximumWeight)
        && Objects.equals(concurrencyLevel, that.concurrencyLevel)
        && Objects.equals(keyStrength, that.keyStrength)
        && Objects.equals(valueStrength, that.valueStrength)

 *   <li>Each other step is derived from one or more input steps. At each step, zero or more objects
 *       can be captured for later closing.
 *   <li>There is one last step (the root of the tree), from which you can extract the final result
 *       of the computation. After that result is available (or the computation fails), all objects
 *       captured by any of the steps in the pipeline are closed.
 * </ol>
 *

        packageInfoFiles.from(GeneratePackageInfoDataTask.findPackageInfoFiles(objects, provider { structure.projectBaseDirs }))
    }

    configurations.consumable("platformsData") {
        outgoing.artifact(platformsData)
        attributes {
            attribute(Category.CATEGORY_ATTRIBUTE, objects.named<Category>(ArchitectureDataType.PLATFORMS))
        }
    }

    isCanBeResolved = false
    isCanBeConsumed = true
    attributes {
        attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.JAVA_RUNTIME))
        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.LIBRARY))
        attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, objects.named("future-versions-resource"))
    }
    outgoing {
        artifact(futurePluginVersionsDestDir) {

    isCanBeConsumed = false
    attributes {
        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.LIBRARY))
        attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.JAVA_API))
        attribute(Bundling.BUNDLING_ATTRIBUTE, objects.named(Bundling.EXTERNAL))
        attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, objects.named(LibraryElements.CLASSES))
    }
}
notForAccessorGeneration {
    dependencies {