new Application().addDelayedShutdownHook(service, terminationTimeout, timeUnit);
  }

  /** Represents the current application to register shutdown hooks. */
  @J2ktIncompatible
  @GwtIncompatible // TODO
  @VisibleForTesting
  static class Application {

    final ExecutorService getExitingExecutorService(

     * application/vnd.oasis.opendocument.presentation=odp<br>
     * application/pdf=pdf<br>
     * application/x-fictionbook+xml=fb2<br>
     * application/e-pub+zip=epub<br>
     * application/x-ibooks+zip=ibooks<br>
     * text/plain=txt<br>
     * application/rtf=rtf<br>
     * application/vnd.ms-htmlhelp=chm<br>
     * application/zip=zip<br>
     * application/x-7z-comressed=7z<br>
     * application/x-bzip=bz<br>

              if (bitToFlip == index.size()) {
                return endOfData();
              }

              /*
               * The current set in sorted order looks like
               * {firstSetBit, firstSetBit + 1, ..., bitToFlip - 1, ...}
               * where it does *not* contain bitToFlip.
               *
               * The next combination is
               *

  // * We are more responsive to completion than timeouts. This is because parkNanos depends on
  //   system scheduling and as such we could either miss our deadline, or unpark() could be delayed
  //   so that it looks like we timed out even though we didn't. For comparison FutureTask respects
  //   completion preferably and AQS is non-deterministic (depends on where in the queue the waiter

        List<String> roots;
        if (nonNull(scope, "scope") == ProjectScope.MAIN) {
            roots = prj.getCompileSourceRoots();
        } else if (scope == ProjectScope.TEST) {
            roots = prj.getTestCompileSourceRoots();
        } else {
            throw new IllegalArgumentException("Unsupported scope " + scope);
        }
        return roots.stream()
                .map(Paths::get)

                }
            }

            builder.pluginRepositories(merged.values());
        }
    }

    /*
     * TODO: Whether duplicates should be removed looks like an option for the generated merger.
     */
    @Override
    protected void mergeBuildBase_Filters(
            BuildBase.Builder builder,
            BuildBase target,
            BuildBase source,

    /** The key of the message: EPUB */
    public static final String LABELS_facet_filetype_epub = "{labels.facet_filetype_epub}";

    /** The key of the message: iBooks */
    public static final String LABELS_facet_filetype_ibooks = "{labels.facet_filetype_ibooks}";

    /** The key of the message: Plain Text */
    public static final String LABELS_facet_filetype_txt = "{labels.facet_filetype_txt}";