import org.gradle.model.internal.core.NodeInitializer;
import org.gradle.model.internal.core.NodeInitializerRegistry;
import org.gradle.model.internal.type.ModelType;

import static org.gradle.model.internal.core.NodeInitializerContext.forType;

public class ManagedChildNodeCreatorStrategy<T> implements ChildNodeInitializerStrategy<T> {

    private final NodeInitializerRegistry nodeInitializerRegistry;

  - ${validationProblem}"""
        }
        _ * work.validate(_ as WorkValidationContext) >> { WorkValidationContext validationContext ->
            validationContext.forType(JobType, true).visitTypeProblem {
                it
                    .withAnnotationType(Object)
                    .id("test-problem", "Validation error", GradleCoreProblemGroup.validation())

import org.gradle.model.internal.type.ModelType;

import java.util.Collections;
import java.util.List;
import java.util.Map;

import static org.gradle.model.internal.core.NodeInitializerContext.forType;

public class ManagedModelCreationRuleExtractor extends AbstractModelCreationRuleExtractor {
    private static final ModelType<NodeInitializerRegistry> NODE_INITIALIZER_REGISTRY = ModelType.of(NodeInitializerRegistry.class);

import org.gradle.model.internal.type.ModelType;

import static org.gradle.model.internal.core.DefaultNodeInitializerRegistry.DEFAULT_REFERENCE;
import static org.gradle.model.internal.core.NodeInitializerContext.forType;

@ThreadSafe
public class TransformedModelDslBacking {
    private final ModelRegistry modelRegistry;
    private final ClosureBackedRuleFactory ruleFactory;

import org.gradle.plugin.use.PluginId;

import java.util.List;
import java.util.Optional;

public interface WorkValidationContext {
    TypeValidationContext forType(Class<?> type, boolean cacheable);

    InternalProblems getProblemsService();

    List<Problem> getProblems();

    ImmutableSet<Class<?>> getValidatedTypes();

    interface TypeOriginInspector {

import org.gradle.model.internal.manage.binding.InvalidManagedTypeException

import static org.gradle.model.ModelTypeTesting.fullyQualifiedNameOf
import static org.gradle.model.internal.core.NodeInitializerContext.forType

class ManagedNodeBackedModelMapTest extends NodeBackedModelMapSpec<NamedThingInterface, SpecialNamedThingInterface> {

    Class<NamedThingInterface> itemClass = NamedThingInterface

        when:
        def instanceFactory = scheme.forType(UsesAnnotation1ForInjection)
        then:
        instanceFactory.serviceInjectionTriggeredByAnnotation(Annotation1)
        !instanceFactory.serviceInjectionTriggeredByAnnotation(Annotation2)

        when:
        instanceFactory = scheme.forType(UsesAnnotationsForInjection)
        then:

import org.gradle.util.internal.ClosureBackedAction;

import static org.gradle.model.internal.core.DefaultNodeInitializerRegistry.DEFAULT_REFERENCE;
import static org.gradle.model.internal.core.NodeInitializerContext.forType;

@NotThreadSafe
public class NonTransformedModelDslBacking extends GroovyObjectSupport {

    // TODO include link to documentation giving more explanation of what's going on here.

    /**
     * Creates a new {@link InstanceFactory} for the given type, which creates instances based on the configuration of this scheme.
     */
    <T> InstanceFactory<T> forType(Class<T> type);

    /**
     * Creates a new {@link InstantiationScheme} which creates instances using the given services, based on the configuration of this scheme.
     */

        }
    }

    @Override
    public <T> ClassGenerator.GeneratedConstructor<? extends T> forParams(Class<T> type, Object[] params) {
        return forType(type);
    }

    @Override
    public <T> ClassGenerator.GeneratedConstructor<? extends T> forType(final Class<T> type) throws UnsupportedOperationException {
        CachedConstructor constructor = constructorCache.get(type, () -> {
            try {