code: @Override
    public final File
        getBinDirectory(final File baseDir, final String artifactId, final String version, final String aol) {
      final File dir = new File(baseDir, this.fileLayout.getBinDirectory(aol));
      return dir;
    }
docs: /*
  (non-Javadoc)
  
  @see com.github.maven_nar.NarLayout#getBinDirectory(java.io.File,
  java.lang.String)