Program: 159395
Project: 159395
Buggy source:
public void update(Map<UUID,PermanentView> battlefield){
  boolean changed=false;
  List<PermanentView> permanentsToAdd=new ArrayList<>();
  for (  PermanentView permanent : battlefield.values()) {
    MagePermanent oldMagePermanent=permanents.get(permanent.getId());
    if (oldMagePermanent == null) {
      permanentsToAdd.add(permanent);
      changed=true;
    }
 else {
      if (!changed) {
        changed=CardUtil.isCreature(oldMagePermanent.getOriginalPermanent()) != CardUtil.isCreature(permanent);
        if (!changed) {
          int s1=permanent.getAttachments() == null ? 0 : permanent.getAttachments().size();
          int s2=oldMagePermanent.getLinks().size();
          if (s1 != s2) {
            changed=true;
          }
        }
      }
      oldMagePermanent.update(permanent);
    }
  }
  addedArtifact=addedCreature=addedPermanent=false;
  int count=permanentsToAdd.size();
  for (  PermanentView permanent : permanentsToAdd) {
    addPermanent(permanent,count);
  }
  if (addedArtifact) {
    AudioManager.playAddArtifact();
  }
 else   if (addedCreature) {
    AudioManager.playSummon();
  }
 else   if (addedPermanent) {
    AudioManager.playAddPermanent();
  }
  removedCreature=false;
  for (Iterator<Entry<UUID,MagePermanent>> iterator=permanents.entrySet().iterator(); iterator.hasNext(); ) {
    Entry<UUID,MagePermanent> entry=iterator.next();
    if (!battlefield.containsKey(entry.getKey())) {
      removePermanent(entry.getKey(),1);
      iterator.remove();
      changed=true;
    }
  }
  if (removedCreature) {
    AudioManager.playDiedCreature();
  }
  if (changed) {
    this.battlefield=battlefield;
    sortLayout();
  }
}

Fixed version (ground truth):
public void update(Map<UUID,PermanentView> battlefield){
  boolean changed=false;
  List<PermanentView> permanentsToAdd=new ArrayList<>();
  for (  PermanentView permanent : battlefield.values()) {
    MagePermanent oldMagePermanent=permanents.get(permanent.getId());
    if (oldMagePermanent == null) {
      permanentsToAdd.add(permanent);
      changed=true;
    }
 else {
      if (!changed) {
        changed=CardUtil.isCreature(oldMagePermanent.getOriginalPermanent()) != CardUtil.isCreature(permanent);
        if (!changed) {
          int s1=permanent.getAttachments() == null ? 0 : permanent.getAttachments().size();
          int s2=oldMagePermanent.getLinks().size();
          if (s1 != s2) {
            changed=true;
          }
 else           if (s1 > 0) {
            Set<UUID> attachmentIds=new HashSet<UUID>();
            attachmentIds.addAll(permanent.getAttachments());
            for (            MagePermanent magePermanent : oldMagePermanent.getLinks()) {
              if (!attachmentIds.contains(magePermanent.getOriginalPermanent().getId())) {
                changed=true;
                break;
              }
            }
          }
        }
      }
      oldMagePermanent.update(permanent);
    }
  }
  addedArtifact=addedCreature=addedPermanent=false;
  int count=permanentsToAdd.size();
  for (  PermanentView permanent : permanentsToAdd) {
    addPermanent(permanent,count);
  }
  if (addedArtifact) {
    AudioManager.playAddArtifact();
  }
 else   if (addedCreature) {
    AudioManager.playSummon();
  }
 else   if (addedPermanent) {
    AudioManager.playAddPermanent();
  }
  removedCreature=false;
  for (Iterator<Entry<UUID,MagePermanent>> iterator=permanents.entrySet().iterator(); iterator.hasNext(); ) {
    Entry<UUID,MagePermanent> entry=iterator.next();
    if (!battlefield.containsKey(entry.getKey())) {
      removePermanent(entry.getKey(),1);
      iterator.remove();
      changed=true;
    }
  }
  if (removedCreature) {
    AudioManager.playDiedCreature();
  }
  if (changed) {
    this.battlefield=battlefield;
    sortLayout();
  }
}