public void execute()

in src/main/java/org/apache/maven/plugins/clean/CleanMojo.java [218:270]
49 lines of code
18 McCabe index (conditional complexity)

    public void execute() throws MojoExecutionException {
        if (skip) {
            getLog().info("Clean is skipped.");
            return;
        }

        String multiModuleProjectDirectory =
                session != null ? session.getSystemProperties().getProperty("maven.multiModuleProjectDirectory") : null;
        File fastDir;
        if (fast && this.fastDir != null) {
            fastDir = this.fastDir;
        } else if (fast && multiModuleProjectDirectory != null) {
            fastDir = new File(multiModuleProjectDirectory, "target/.clean");
        } else {
            fastDir = null;
            if (fast) {
                getLog().warn("Fast clean requires maven 3.3.1 or newer, "
                        + "or an explicit directory to be specified with the 'fastDir' configuration of "
                        + "this plugin, or the 'maven.clean.fastDir' user property to be set.");
            }
        }
        if (fast
                && !FAST_MODE_BACKGROUND.equals(fastMode)
                && !FAST_MODE_AT_END.equals(fastMode)
                && !FAST_MODE_DEFER.equals(fastMode)) {
            throw new IllegalArgumentException("Illegal value '" + fastMode + "' for fastMode. Allowed values are '"
                    + FAST_MODE_BACKGROUND + "', '" + FAST_MODE_AT_END + "' and '" + FAST_MODE_DEFER + "'.");
        }

        Cleaner cleaner = new Cleaner(session, getLog(), isVerbose(), fastDir, fastMode);

        try {
            for (File directoryItem : getDirectories()) {
                if (directoryItem != null) {
                    cleaner.delete(directoryItem, null, followSymLinks, failOnError, retryOnError);
                }
            }

            if (filesets != null) {
                for (Fileset fileset : filesets) {
                    if (fileset.getDirectory() == null) {
                        throw new MojoExecutionException("Missing base directory for " + fileset);
                    }
                    GlobSelector selector = new GlobSelector(
                            fileset.getIncludes(), fileset.getExcludes(), fileset.isUseDefaultExcludes());
                    cleaner.delete(
                            fileset.getDirectory(), selector, fileset.isFollowSymlinks(), failOnError, retryOnError);
                }
            }
        } catch (IOException e) {
            throw new MojoExecutionException("Failed to clean project: " + e.getMessage(), e);
        }
    }