return removeAttributes(old, attributes.getAttributeNames());
AttributeSet ret; if (old.getAttributeCount() <= getCompressionThreshold()) { search.removeAttributes(search); search.addAttributes(old); search.removeAttributes(attributes); reclaim(old); ret = searchImmutableSet();
  public AttributeSet removeAttributes(AttributeSet old, AttributeSet attributes)  {    return removeAttributes(old, attributes.getAttributeNames());  }