abstract class TaskWithInput extends DefaultTask {

                private final NestedBean nested = project.objects.newInstance(NestedBean.class)

                @Input
                URL getDirect() { null }

                @Input
                Provider<URL> getProviderInput() { propertyInput }

                @Input
                abstract Property<URL> getPropertyInput();

                private final NestedBean nested = project.objects.newInstance(NestedBean.class)

                $annotation
                ResolvedArtifactResult getDirect() { null }

                $annotation
                Provider<ResolvedArtifactResult> getProviderInput() { propertyInput }

                $annotation

            public abstract class MyTask extends DefaultTask {

                private final NestedBean nested = getProject().getObjects().newInstance(NestedBean.class);

                @Input
                public URL getDirect() { return null; }

                @Input
                public Provider<URL> getProviderInput() { return getPropertyInput(); }

                @Input
                public abstract Property<URL> getPropertyInput();

                private final NestedBean nested = getProject().getObjects().newInstance(NestedBean.class);

                @$annotation
                public ResolvedArtifactResult getDirect() { return null; }

                @$annotation
                public Provider<ResolvedArtifactResult> getProviderInput() { return getPropertyInput(); }

                @$annotation