import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD, ElementType.TYPE})
@ExtensionAnnotation(FailsWithMessageExtension.class)
public @interface FailsWithMessage {
    Class<? extends Throwable> type();

    String message();

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.util

import org.gradle.util.internal.FailsWithMessage

import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
import org.spockframework.mock.TooManyInvocationsError
import spock.lang.FailsWith

    @Override
    public void visitFeatureAnnotation(FailsWithMessage annotation, FeatureInfo feature) {
        feature.getFeatureMethod().addInterceptor(new FailsWithMessageInterceptor(annotation));
    }

    private static class FailsWithMessageInterceptor implements IMethodInterceptor {
        private final FailsWithMessage annotation;

- `Swapper`
- `StdInSwapper`
- `IncubationLogger`
- `RedirectStdIn`
- `MultithreadedTestRule`
- `DisconnectableInputStream`
- `BulkReadInputStream`
- `MockExecutor`
- `FailsWithMessage`
- `FailsWithMessageExtension`
- `TreeVisitor`
- `AntUtil`
- `JarUtil`

===== The last set of classes have no external or internal usages and therefore were deleted:

- `DiffUtil`

Class <org.gradle.util.internal.FailsWithMessage> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (FailsWithMessage.java:0)