private DeploymentDescriptor deploymentDescriptor;
    private CopySpec lib;
    private final DirectoryProperty appDir;

    public Ear() {
        getArchiveExtension().set(EAR_EXTENSION);
        setMetadataCharset("UTF-8");
        generateDeploymentDescriptor = getObjectFactory().property(Boolean.class);
        generateDeploymentDescriptor.convention(true);

    }

    /**
     * Returns the extension part of the archive name.
     *
     * @since 5.1
     */
    @Internal("Represented as part of archiveFile")
    public Property<String> getArchiveExtension() {
        return archiveExtension;
    }

    /**
     * Returns the classifier part of the archive name, if any.
     *
     * @return The classifier. Internal property may be null.