}
        }
    }

    private long getArchiveTimeFor(FileCopyDetails details) {
        return preserveFileTimestamps ? details.getLastModified() : CONSTANT_TIME_FOR_ZIP_ENTRIES;
    }

        }

        @Override
        public boolean isDirectory() {
            return !path.isFile();
        }

        @Override
        public long getLastModified() {
            return lastModified;
        }

        @Override
        public long getSize() {
            throw new UnsupportedOperationException();
        }

        @Override

        fileTree.visit(fileVisitor)
        rootDir.deleteDir()

        then:
        visitedFiles.size() == 3
        visitedFiles.each {
            assert !it.isDirectory() && it.getSize() == 5 && it.getLastModified() >= minimumTimestamp
        }
        visitedDirectories.size() == 2
        visitedDirectories.every {
            it.isDirectory()
        }
    }

        return contentLength;
    }

    @Override
    public void setContentLength(final Long contentLength) {
        this.contentLength = contentLength;
    }

    @Override
    public Long getLastModified() {
        return lastModified;
    }

    @Override
    public void setLastModified(final Long lastModified) {
        this.lastModified = lastModified;
    }

    @Override

                            writeHashCode(encoder, fileSnapshot.getHash());
                            FileMetadata metadata = fileSnapshot.getMetadata();
                            encoder.writeSmallLong(metadata.getLastModified());
                            encoder.writeSmallLong(metadata.getLength());
                        } catch (IOException e) {
                            throw new UncheckedIOException(e);
                        }

        if (fileMetadata.getType() == FileType.Missing) {
            return null;
        }
        return new DefaultExternalResourceMetaData(localFile.toURI(), fileMetadata.getLastModified(), fileMetadata.getLength());
    }

    @Override
    public ExternalResourceReadResult<Void> writeTo(OutputStream output) {
        if (!localFile.exists()) {