});

        extension.getSourceRoot().convention(layout.getProjectDirectory().dir("src/docs"));
        extension.getDocumentationRenderedRoot().convention(layout.getBuildDirectory().dir("docs"));
        extension.getStagingRoot().convention(layout.getBuildDirectory().dir("working"));

        ConfigurableFileTree css = objects.fileTree();
        css.from(extension.getSourceRoot().dir("css"));
        css.include("*.css");

            // See https://docs.oracle.com/en/java/javase/21/docs/specs/man/javadoc.html#option-linkoffline
            task.include("package-list", "element-list");
            task.into(layout.getBuildDirectory().dir("groovyPackageList"));
        });

        TaskProvider<Javadoc> javadocAll = tasks.register("javadocAll", Javadoc.class, task -> {
            task.setGroup("documentation");

            task.getReportFile().convention(layout.getBuildDirectory().file("reports/dead-internal-links.txt"));
            task.getDocumentationRoot().convention(extension.getUserManual().getStagedDocumentation()); // working/usermanual/raw/
            task.getJavadocRoot().convention(layout.getBuildDirectory().dir("javadoc"));