final ResourceStoreRequest root = new ResourceStoreRequest(RepositoryItemUid.PATH_ROOT);
final DefaultWalkerContext ctx = new DefaultWalkerContext(this, root, filter);
ctx.getContext().put("mirrored", mirrored);
ctx.getProcessors().add(new AbstractWalkerProcessor()
{
@SuppressWarnings("unchecked")
@Override
public void processItem(final WalkerContext context, final StorageItem item)
throws Exception