* object does not have that functionality. For example, calling {@link #getConventionMapping()} will fail
 * if the backing object does not implement {@link IConventionAware}.
 */
@SuppressWarnings("deprecation")
public class DslObject implements DynamicObjectAware, ExtensionAware, IConventionAware, org.gradle.api.internal.HasConvention {

    private DynamicObject dynamicObject;
    private ExtensionContainer extensionContainer;

        given:
        file('buildSrc/src/main/java/CustomPlugin.java') << '''
import org.gradle.api.*;
import org.gradle.api.internal.plugins.DslObject;

public class CustomPlugin implements Plugin<Project> {
    public void apply(Project p) {
      new DslObject(p).getExtensions().getExtraProperties().set("prop", "value");
    }
}
'''

        when:
        def dsl = new DslObject(new Object())

        then:
        notThrown(Exception)

        when:
        dsl.asDynamicObject

        then:
        thrown(IllegalStateException)
    }

    static class Thing {}

    def "works for dsl object"() {
        when:
        new DslObject(TestUtil.instantiatorFactory().decorateLenient().newInstance(Thing))

        DslObject dslObject = new DslObject(newInstance(Bean.class));
        assertEquals(Bean.class, dslObject.getDeclaredType());
        assertEquals(Bean.class, dslObject.getImplementationType());
        assertEquals(typeOf(Bean.class), dslObject.getPublicType());
        assertNotNull(dslObject.getConventionMapping());
        assertNotNull(dslObject.getConvention());

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import org.gradle.api.internal.plugins.DslObject

val unsupportedTasksPredicate: (Task) -> Boolean = { task: Task ->
    when {

        // Working tasks that would otherwise be matched by filters below
        task.name in listOf(

 * limitations under the License.
 */

package org.gradle.kotlin.dsl

import org.gradle.api.InvalidUserCodeException

import org.gradle.api.internal.DynamicObjectAware
import org.gradle.api.internal.plugins.DslObject
import org.gradle.api.internal.project.DynamicLookupRoutine
import org.gradle.internal.metaobject.DynamicObject
import org.gradle.kotlin.dsl.support.uncheckedCast

import kotlin.reflect.KProperty


/**

import org.gradle.api.internal.DefaultNamedDomainObjectSet;
import org.gradle.api.internal.MutationGuard;
import org.gradle.api.internal.collections.CollectionFilter;
import org.gradle.api.internal.plugins.DslObject;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.internal.provider.ProviderInternal;
import org.gradle.api.reflect.TypeOf;
import org.gradle.api.specs.Spec;
import org.gradle.api.specs.Specs;

 * limitations under the License.
 */

package org.gradle.api.internal.tasks.testing.testng;

import org.gradle.api.Action;
import org.gradle.api.internal.plugins.DslObject;
import org.gradle.api.internal.tasks.testing.TestFramework;
import org.gradle.api.internal.tasks.testing.WorkerTestClassProcessorFactory;
import org.gradle.api.internal.tasks.testing.detection.ClassFileExtractionManager;

import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.file.FileCollection;
import org.gradle.api.internal.classpath.ModuleRegistry;
import org.gradle.api.internal.plugins.DslObject;
import org.gradle.api.internal.tasks.DefaultSourceSet;
import org.gradle.api.model.ObjectFactory;
import org.gradle.api.plugins.internal.DefaultJavaPluginExtension;
import org.gradle.api.plugins.internal.JvmPluginsHelper;

import org.gradle.api.internal.artifacts.configurations.ConfigurationRolesForMigration;
import org.gradle.api.internal.artifacts.dsl.LazyPublishArtifact;
import org.gradle.api.internal.plugins.DslObject;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.internal.tasks.DefaultSourceSetOutput;
import org.gradle.api.internal.tasks.JvmConstants;
import org.gradle.api.model.ObjectFactory;