private List buildReadmeAndHeaderHtmlFiles()

in src/main/java/org/apache/commons/release/plugin/mojos/CommonsDistributionStagingMojo.java [217:257]
30 lines of code
3 McCabe index (conditional complexity)

    private List<File> buildReadmeAndHeaderHtmlFiles() throws MojoExecutionException {
        final List<File> headerAndReadmeFiles = new ArrayList<>();
        final File headerFile = new File(distRcVersionDirectory, HEADER_FILE_NAME);
        //
        // HEADER file
        //
        try (Writer headerWriter = new OutputStreamWriter(Files.newOutputStream(headerFile.toPath()),
                StandardCharsets.UTF_8)) {
            HeaderHtmlVelocityDelegate.builder().build().render(headerWriter);
        } catch (final IOException e) {
            final String message = "Could not build HEADER html file " + headerFile;
            getLog().error(message, e);
            throw new MojoExecutionException(message, e);
        }
        headerAndReadmeFiles.add(headerFile);
        //
        // README file
        //
        final File readmeFile = new File(distRcVersionDirectory, README_FILE_NAME);
        try (Writer readmeWriter = new OutputStreamWriter(Files.newOutputStream(readmeFile.toPath()),
                StandardCharsets.UTF_8)) {
            // @formatter:off
            final ReadmeHtmlVelocityDelegate readmeHtmlVelocityDelegate = ReadmeHtmlVelocityDelegate.builder()
                    .withArtifactId(project.getArtifactId())
                    .withVersion(project.getVersion())
                    .withSiteUrl(project.getUrl())
                    .build();
            // @formatter:on
            readmeHtmlVelocityDelegate.render(readmeWriter);
        } catch (final IOException e) {
            final String message = "Could not build README html file " + readmeFile;
            getLog().error(message, e);
            throw new MojoExecutionException(message, e);
        }
        headerAndReadmeFiles.add(readmeFile);
        //
        // signature-validator.sh file copy
        //
        headerAndReadmeFiles.addAll(copyHeaderAndReadmeToSubdirectories(headerFile, readmeFile));
        return headerAndReadmeFiles;
    }