error(missingNormalizationStrategyConfig { type('MyTask').property('inputFile').annotatedWith('InputFile') }, 'validation_problems', 'missing_normalization_annotation'),
            error(missingNormalizationStrategyConfig { type('MyTask').property('inputFiles').annotatedWith('InputFiles') }, 'validation_problems', 'missing_normalization_annotation'),
        ])

        and:

import org.gradle.api.tasks.Classpath;
import org.gradle.api.tasks.Console;
import org.gradle.api.tasks.IgnoreEmptyDirectories;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.Internal;
import org.gradle.api.tasks.Optional;
import org.gradle.api.tasks.PathSensitive;
import org.gradle.api.tasks.PathSensitivity;
import org.gradle.process.ExecSpec;

        }

        TaskFixture localState(String path) {
            produces(path, ProductionType.LOCAL_STATE)
            return this
        }

        TaskFixture inputFiles(String path) {
            inputFiles.add(path)
            return this
        }

        String getName() {
            return path.split(':').last()
        }

        String getFullPath() {

import org.gradle.api.file.RegularFile;
import org.gradle.api.file.RegularFileProperty;
import org.gradle.api.provider.ListProperty;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.OutputFile;
import org.gradle.api.tasks.TaskAction;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

    static class MyTask extends DefaultTask {

        @Input
        String myProperty = "myValue"

        @InputFile
        @PathSensitive(PathSensitivity.NONE)
        File inputFile = new File("some-location")

        @InputFiles
        @PathSensitive(PathSensitivity.NONE)
        FileCollection inputFiles = TestFiles.fixed(new File("files"))

        @OutputFile
        File outputFile = new File("output")

     */
    @PathSensitive(PathSensitivity.NONE)
    @InputFiles
    public ConfigurableFileCollection getExecutionData() {
        return executionData;
    }

    /**
     * Source sets that coverage should be reported for.
     */
    @IgnoreEmptyDirectories
    @PathSensitive(PathSensitivity.RELATIVE)
    @InputFiles
    public ConfigurableFileCollection getSourceDirectories() {

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.internal.execution.model.annotations;

import org.gradle.api.tasks.InputFiles;
import org.gradle.internal.properties.InputFilePropertyType;

import static org.gradle.internal.execution.model.annotations.ModifierAnnotationCategory.IGNORE_EMPTY_DIRECTORIES;

import org.gradle.api.model.ObjectFactory
import org.gradle.api.tasks.CacheableTask
import org.gradle.api.tasks.Classpath
import org.gradle.api.tasks.InputDirectory
import org.gradle.api.tasks.InputFile
import org.gradle.api.tasks.InputFiles
import org.gradle.api.tasks.OutputDirectory
import org.gradle.api.tasks.PathSensitive
import org.gradle.api.tasks.PathSensitivity
import org.gradle.api.tasks.SourceTask

        buildFile << """
            @CacheableTask
            class TaskWithOutputs extends DefaultTask {
                @InputFile
                @PathSensitive(PathSensitivity.RELATIVE)
                File input

                @InputFiles
                @PathSensitive(PathSensitivity.RELATIVE)
                FileCollection sources

                ${output.annotation}

                PropertyValue value,
                InputFilePropertyType filePropertyType
            ) {
                inputFiles[propertyName] = value.call()
            }
        })
        return inputFiles
    }