canBuildBitmaps = config.isBuildBitmaps()
&& !shallowPack
&& have.isEmpty()
&& (excludeInPacks == null || excludeInPacks.length == 0);
if (!shallowPack && useBitmaps) {
BitmapIndex bitmapIndex = reader.getBitmapIndex();
if (bitmapIndex != null) {
PackWriterBitmapWalker bitmapWalker = new PackWriterBitmapWalker(
walker, bitmapIndex, countingMonitor);
findObjectsToPackUsingBitmaps(bitmapWalker, want, have);
endPhase(countingMonitor);