import java.io.FileOutputStream;
import java.util.function.Supplier;

public class FileBackedObjectHolder<T> implements ObjectHolder<T> {
    private final FileAccess fileAccess;
    private final Serializer<T> serializer;
    private final Chmod chmod;
    private final File cacheFile;

    public FileBackedObjectHolder(File cacheFile, FileAccess fileAccess, Serializer<T> serializer, Chmod chmod) {

    final Chmod chmod = Mock()
    final File file = tmpDir.file("state.bin")
    final FileBackedObjectHolder<String> cache = createStateCache(fileAccess)

    private FileBackedObjectHolder createStateCache(FileAccess fileAccess, File file = file, Serializer serializer = new DefaultSerializer()) {
        return new FileBackedObjectHolder(file, fileAccess, serializer, chmod)
    }

    def "returns null when file does not exist"() {

 * limitations under the License.
 */

package org.gradle.internal.scopeids;

import org.gradle.cache.FileLockManager;
import org.gradle.cache.ObjectHolder;
import org.gradle.cache.internal.FileBackedObjectHolder;
import org.gradle.cache.internal.FileIntegrityViolationSuppressingObjectHolderDecorator;
import org.gradle.cache.internal.OnDemandFileAccess;
import org.gradle.internal.file.Chmod;
import org.gradle.internal.id.UniqueId;

import org.gradle.api.logging.Logger;
import org.gradle.api.logging.Logging;
import org.gradle.api.specs.Spec;
import org.gradle.cache.FileLockManager;
import org.gradle.cache.ObjectHolder;
import org.gradle.cache.internal.FileBackedObjectHolder;
import org.gradle.cache.internal.FileIntegrityViolationSuppressingObjectHolderDecorator;
import org.gradle.cache.internal.OnDemandFileAccess;
import org.gradle.internal.file.Chmod;