private static List<BlockNode> cleanBlockList(List<BlockNode> list){
  List<BlockNode> ret=new ArrayList<BlockNode>(list.size());
  for (  BlockNode block : list) {
    if (!isBlockMustBeCleared(block)) {
      ret.add(block);
    }
  }
  return ret;
}

private static List < BlockNode > cleanBlockList ( List < BlockNode > list ) { List < BlockNode > ret = new ArrayList < BlockNode > ( list . size ( ) ) ; for ( BlockNode block : list ) { if ( ! isBlockMustBeCleared ( block ) ) { ret . add ( block ) ; } } return ret ; }
remove exception handlers from block nodes list
