Program: 10211
Project: 10211
Buggy source:
@Override public String getAttribute(Attribute attribute){
  if (attribute == null)   return null;
  if (attribute.startsWith("String_Node_Str")) {
    if (attribute.hasContext(1))     return new dList(getBlocks(dList.valueOf(attribute.getContext(1)).filter(dMaterial.class))).getAttribute(attribute.fulfill(1));
 else     return new dList(getBlocks()).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str"))   return new Element(pairs.size()).getAttribute(attribute.fulfill(1));
  if (attribute.startsWith("String_Node_Str")) {
    int member=attribute.getIntContext(1);
    if (member < 1)     member=1;
    if (member > pairs.size())     member=pairs.size();
    return new dCuboid(pairs.get(member - 1).low,pairs.get(member - 1).high).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    if (attribute.hasContext(1))     return new dList(getSpawnableBlocks(dList.valueOf(attribute.getContext(1)).filter(dMaterial.class))).getAttribute(attribute.fulfill(1));
 else     return new dList(getSpawnableBlocks()).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str"))   return new dList(getOutline()).getAttribute(attribute.fulfill(1));
  if (attribute.startsWith("String_Node_Str"))   return new dList(filter).getAttribute(attribute.fulfill(1));
  if (attribute.startsWith("String_Node_Str") && attribute.hasContext(1)) {
    dLocation loc=dLocation.valueOf(attribute.getContext(1));
    if (loc != null)     return new Element(isInsideCuboid(loc)).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str") && attribute.hasContext(1)) {
    dCuboid cub2=dCuboid.valueOf(attribute.getContext(1));
    if (cub2 != null) {
      boolean intersects=false;
      for (      LocationPair pair : pairs) {
        for (        LocationPair pair2 : cub2.pairs) {
          if (pair2.low.getX() <= pair.high.getX() && pair2.low.getY() <= pair.high.getY() && pair2.low.getZ() <= pair.high.getZ() && pair2.high.getX() >= pair.low.getX() && pair2.high.getY() >= pair.low.getY() && pair2.high.getZ() >= pair.low.getZ()) {
            intersects=true;
            break;
          }
        }
      }
      return new Element(intersects).getAttribute(attribute.fulfill(1));
    }
  }
  if (attribute.startsWith("String_Node_Str")) {
    LocationPair pair;
    if (!attribute.hasContext(1))     pair=pairs.get(0);
 else {
      int member=attribute.getIntContext(1);
      if (member < 1)       member=1;
      if (member > pairs.size())       member=pairs.size();
      pair=pairs.get(member - 1);
    }
    Location base=pair.high.clone().add(pair.low.clone());
    base.setX(base.getX() / 2);
    base.setY(base.getY() / 2);
    base.setZ(base.getZ() / 2);
    return new dLocation(base).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    if (!attribute.hasContext(1))     return pairs.get(0).high.getAttribute(attribute.fulfill(1));
 else {
      int member=attribute.getIntContext(1);
      if (member < 1)       member=1;
      if (member > pairs.size())       member=pairs.size();
      return pairs.get(member - 1).high.getAttribute(attribute.fulfill(1));
    }
  }
  if (attribute.startsWith("String_Node_Str")) {
    if (!attribute.hasContext(1))     return pairs.get(0).low.getAttribute(attribute.fulfill(1));
 else {
      int member=attribute.getIntContext(1);
      if (member < 1)       member=1;
      if (member > pairs.size())       member=pairs.size();
      return pairs.get(member - 1).low.getAttribute(attribute.fulfill(1));
    }
  }
  if (attribute.startsWith("String_Node_Str") && attribute.hasContext(1)) {
    try {
      dLocation loc=dLocation.valueOf(attribute.getContext(1));
      dCuboid cuboid=this.clone();
      if (loc != null) {
        if (loc.getX() < cuboid.pairs.get(0).low.getX())         cuboid.pairs.get(0).low=new dLocation(cuboid.pairs.get(0).low.getWorld(),loc.getX(),cuboid.pairs.get(0).low.getY(),cuboid.pairs.get(0).low.getZ());
        if (loc.getY() < cuboid.pairs.get(0).low.getY())         cuboid.pairs.get(0).low=new dLocation(cuboid.pairs.get(0).low.getWorld(),cuboid.pairs.get(0).low.getX(),loc.getY(),cuboid.pairs.get(0).low.getZ());
        if (loc.getZ() < cuboid.pairs.get(0).low.getZ())         cuboid.pairs.get(0).low=new dLocation(cuboid.pairs.get(0).low.getWorld(),cuboid.pairs.get(0).low.getX(),cuboid.pairs.get(0).low.getY(),loc.getZ());
        if (loc.getX() > cuboid.pairs.get(0).high.getX())         cuboid.pairs.get(0).high=new dLocation(cuboid.pairs.get(0).high.getWorld(),loc.getX(),cuboid.pairs.get(0).high.getY(),cuboid.pairs.get(0).high.getZ());
        if (loc.getY() > cuboid.pairs.get(0).high.getY())         cuboid.pairs.get(0).high=new dLocation(cuboid.pairs.get(0).high.getWorld(),cuboid.pairs.get(0).high.getX(),loc.getY(),cuboid.pairs.get(0).high.getZ());
        if (loc.getZ() > cuboid.pairs.get(0).high.getZ())         cuboid.pairs.get(0).high=new dLocation(cuboid.pairs.get(0).high.getWorld(),cuboid.pairs.get(0).high.getX(),cuboid.pairs.get(0).high.getY(),loc.getZ());
        return cuboid.getAttribute(attribute.fulfill(1));
      }
    }
 catch (    CloneNotSupportedException ex) {
    }
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dPlayer> players=new ArrayList<dPlayer>();
    for (    Player player : Bukkit.getOnlinePlayers())     if (isInsideCuboid(player.getLocation()))     players.add(dPlayer.mirrorBukkitPlayer(player));
    return new dList(players).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dNPC> npcs=new ArrayList<dNPC>();
    for (    NPC npc : CitizensAPI.getNPCRegistry()) {
      dNPC dnpc=dNPC.mirrorCitizensNPC(npc);
      if (isInsideCuboid(dnpc.getLocation()))       npcs.add(dnpc);
    }
    return new dList(npcs).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dEntity> entities=new ArrayList<dEntity>();
    dList types=new dList();
    if (attribute.hasContext(1)) {
      types=dList.valueOf(attribute.getContext(1));
    }
    for (    Entity ent : getWorld().getEntities()) {
      dEntity current=new dEntity(ent);
      if (ent.isValid() && isInsideCuboid(ent.getLocation())) {
        if (!types.isEmpty()) {
          for (          String type : types) {
            if (current.identifySimpleType().equalsIgnoreCase(type)) {
              entities.add(current);
              break;
            }
          }
        }
 else         entities.add(new dEntity(ent));
      }
    }
    return new dList(entities).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dEntity> entities=new ArrayList<dEntity>();
    for (    Entity ent : getWorld().getLivingEntities()) {
      if (ent.isValid() && isInsideCuboid(ent.getLocation()) && !CitizensAPI.getNPCRegistry().isNPC(ent))       entities.add(new dEntity(ent));
    }
    return new dList(entities).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    Set<Chunk> chunks=new HashSet<Chunk>();
    for (    LocationPair pair : pairs) {
      int minY=pair.low.getBlockY();
      Chunk minChunk=pair.low.getChunk();
      if (isInsideCuboid(new Location(getWorld(),minChunk.getX() * 16,minY,minChunk.getZ() * 16)))       chunks.add(minChunk);
      Chunk maxChunk=pair.high.getChunk();
      if (isInsideCuboid(new Location(getWorld(),maxChunk.getX() * 16 + 15,minY,maxChunk.getZ() * 16 + 15)))       chunks.add(maxChunk);
      dB.log("String_Node_Str" + minChunk.getX() + "String_Node_Str"+ minChunk.getZ());
      dB.log("String_Node_Str" + maxChunk.getX() + "String_Node_Str"+ maxChunk.getZ());
      for (int x=minChunk.getX() + 1; x <= maxChunk.getX() - 1; x++) {
        for (int z=minChunk.getZ() + 1; z <= maxChunk.getZ() - 1; z++) {
          chunks.add(getWorld().getChunkAt(x,z));
        }
      }
    }
    dList list=new dList();
    for (    Chunk chunk : chunks)     list.add(new dChunk(chunk).identify());
    return list.getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    Set<Chunk> chunks=new HashSet<Chunk>();
    for (    LocationPair pair : pairs) {
      Chunk minChunk=pair.low.getChunk();
      Chunk maxChunk=pair.high.getChunk();
      dB.log("String_Node_Str" + minChunk.getX() + "String_Node_Str"+ minChunk.getZ());
      dB.log("String_Node_Str" + maxChunk.getX() + "String_Node_Str"+ maxChunk.getZ());
      for (int x=minChunk.getX(); x <= maxChunk.getX(); x++) {
        for (int z=minChunk.getZ(); z <= maxChunk.getZ(); z++) {
          chunks.add(getWorld().getChunkAt(x,z));
        }
      }
    }
    dList list=new dList();
    for (    Chunk chunk : chunks)     list.add(new dChunk(chunk).identify());
    return list.getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    return new Element(NotableManager.getSavedId(this)).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str"))   return new Element(identifyFull()).getAttribute(attribute.fulfill(1));
  for (  Property property : PropertyParser.getProperties(this)) {
    String returned=property.getAttribute(attribute);
    if (returned != null)     return returned;
  }
  return new Element(identify()).getAttribute(attribute);
}

Fixed version (ground truth):
@Override public String getAttribute(Attribute attribute){
  if (attribute == null)   return null;
  if (attribute.startsWith("String_Node_Str")) {
    if (attribute.hasContext(1))     return new dList(getBlocks(dList.valueOf(attribute.getContext(1)).filter(dMaterial.class))).getAttribute(attribute.fulfill(1));
 else     return new dList(getBlocks()).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str"))   return new Element(pairs.size()).getAttribute(attribute.fulfill(1));
  if (attribute.startsWith("String_Node_Str")) {
    int member=attribute.getIntContext(1);
    if (member < 1)     member=1;
    if (member > pairs.size())     member=pairs.size();
    return new dCuboid(pairs.get(member - 1).low,pairs.get(member - 1).high).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    if (attribute.hasContext(1))     return new dList(getSpawnableBlocks(dList.valueOf(attribute.getContext(1)).filter(dMaterial.class))).getAttribute(attribute.fulfill(1));
 else     return new dList(getSpawnableBlocks()).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str"))   return new dList(getOutline()).getAttribute(attribute.fulfill(1));
  if (attribute.startsWith("String_Node_Str"))   return new dList(filter).getAttribute(attribute.fulfill(1));
  if (attribute.startsWith("String_Node_Str") && attribute.hasContext(1)) {
    dLocation loc=dLocation.valueOf(attribute.getContext(1));
    if (loc != null)     return new Element(isInsideCuboid(loc)).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str") && attribute.hasContext(1)) {
    dCuboid cub2=dCuboid.valueOf(attribute.getContext(1));
    if (cub2 != null) {
      boolean intersects=false;
      for (      LocationPair pair : pairs) {
        for (        LocationPair pair2 : cub2.pairs) {
          if (pair2.low.getX() <= pair.high.getX() && pair2.low.getY() <= pair.high.getY() && pair2.low.getZ() <= pair.high.getZ() && pair2.high.getX() >= pair.low.getX() && pair2.high.getY() >= pair.low.getY() && pair2.high.getZ() >= pair.low.getZ()) {
            intersects=true;
            break;
          }
        }
      }
      return new Element(intersects).getAttribute(attribute.fulfill(1));
    }
  }
  if (attribute.startsWith("String_Node_Str")) {
    LocationPair pair;
    if (!attribute.hasContext(1))     pair=pairs.get(0);
 else {
      int member=attribute.getIntContext(1);
      if (member < 1)       member=1;
      if (member > pairs.size())       member=pairs.size();
      pair=pairs.get(member - 1);
    }
    Location base=pair.high.clone().add(pair.low.clone());
    base.setX(base.getX() / 2);
    base.setY(base.getY() / 2);
    base.setZ(base.getZ() / 2);
    return new dLocation(base).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    if (!attribute.hasContext(1))     return pairs.get(0).high.getAttribute(attribute.fulfill(1));
 else {
      int member=attribute.getIntContext(1);
      if (member < 1)       member=1;
      if (member > pairs.size())       member=pairs.size();
      return pairs.get(member - 1).high.getAttribute(attribute.fulfill(1));
    }
  }
  if (attribute.startsWith("String_Node_Str")) {
    if (!attribute.hasContext(1))     return pairs.get(0).low.getAttribute(attribute.fulfill(1));
 else {
      int member=attribute.getIntContext(1);
      if (member < 1)       member=1;
      if (member > pairs.size())       member=pairs.size();
      return pairs.get(member - 1).low.getAttribute(attribute.fulfill(1));
    }
  }
  if (attribute.startsWith("String_Node_Str") && attribute.hasContext(1)) {
    try {
      dLocation loc=dLocation.valueOf(attribute.getContext(1));
      dCuboid cuboid=this.clone();
      if (loc != null) {
        if (loc.getX() < cuboid.pairs.get(0).low.getX())         cuboid.pairs.get(0).low=new dLocation(cuboid.pairs.get(0).low.getWorld(),loc.getX(),cuboid.pairs.get(0).low.getY(),cuboid.pairs.get(0).low.getZ());
        if (loc.getY() < cuboid.pairs.get(0).low.getY())         cuboid.pairs.get(0).low=new dLocation(cuboid.pairs.get(0).low.getWorld(),cuboid.pairs.get(0).low.getX(),loc.getY(),cuboid.pairs.get(0).low.getZ());
        if (loc.getZ() < cuboid.pairs.get(0).low.getZ())         cuboid.pairs.get(0).low=new dLocation(cuboid.pairs.get(0).low.getWorld(),cuboid.pairs.get(0).low.getX(),cuboid.pairs.get(0).low.getY(),loc.getZ());
        if (loc.getX() > cuboid.pairs.get(0).high.getX())         cuboid.pairs.get(0).high=new dLocation(cuboid.pairs.get(0).high.getWorld(),loc.getX(),cuboid.pairs.get(0).high.getY(),cuboid.pairs.get(0).high.getZ());
        if (loc.getY() > cuboid.pairs.get(0).high.getY())         cuboid.pairs.get(0).high=new dLocation(cuboid.pairs.get(0).high.getWorld(),cuboid.pairs.get(0).high.getX(),loc.getY(),cuboid.pairs.get(0).high.getZ());
        if (loc.getZ() > cuboid.pairs.get(0).high.getZ())         cuboid.pairs.get(0).high=new dLocation(cuboid.pairs.get(0).high.getWorld(),cuboid.pairs.get(0).high.getX(),cuboid.pairs.get(0).high.getY(),loc.getZ());
        return cuboid.getAttribute(attribute.fulfill(1));
      }
    }
 catch (    CloneNotSupportedException ex) {
    }
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dPlayer> players=new ArrayList<dPlayer>();
    for (    Player player : Bukkit.getOnlinePlayers())     if (isInsideCuboid(player.getLocation()))     players.add(dPlayer.mirrorBukkitPlayer(player));
    return new dList(players).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str") && Depends.citizens != null) {
    ArrayList<dNPC> npcs=new ArrayList<dNPC>();
    for (    NPC npc : CitizensAPI.getNPCRegistry()) {
      dNPC dnpc=dNPC.mirrorCitizensNPC(npc);
      if (isInsideCuboid(dnpc.getLocation()))       npcs.add(dnpc);
    }
    return new dList(npcs).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dEntity> entities=new ArrayList<dEntity>();
    dList types=new dList();
    if (attribute.hasContext(1)) {
      types=dList.valueOf(attribute.getContext(1));
    }
    for (    Entity ent : getWorld().getEntities()) {
      dEntity current=new dEntity(ent);
      if (ent.isValid() && isInsideCuboid(ent.getLocation())) {
        if (!types.isEmpty()) {
          for (          String type : types) {
            if (current.identifySimpleType().equalsIgnoreCase(type)) {
              entities.add(current);
              break;
            }
          }
        }
 else         entities.add(new dEntity(ent));
      }
    }
    return new dList(entities).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    ArrayList<dEntity> entities=new ArrayList<dEntity>();
    for (    Entity ent : getWorld().getLivingEntities()) {
      if (ent.isValid() && isInsideCuboid(ent.getLocation()) && (Depends.citizens == null || !CitizensAPI.getNPCRegistry().isNPC(ent)))       entities.add(new dEntity(ent));
    }
    return new dList(entities).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    Set<Chunk> chunks=new HashSet<Chunk>();
    for (    LocationPair pair : pairs) {
      int minY=pair.low.getBlockY();
      Chunk minChunk=pair.low.getChunk();
      if (isInsideCuboid(new Location(getWorld(),minChunk.getX() * 16,minY,minChunk.getZ() * 16)))       chunks.add(minChunk);
      Chunk maxChunk=pair.high.getChunk();
      if (isInsideCuboid(new Location(getWorld(),maxChunk.getX() * 16 + 15,minY,maxChunk.getZ() * 16 + 15)))       chunks.add(maxChunk);
      dB.log("String_Node_Str" + minChunk.getX() + "String_Node_Str"+ minChunk.getZ());
      dB.log("String_Node_Str" + maxChunk.getX() + "String_Node_Str"+ maxChunk.getZ());
      for (int x=minChunk.getX() + 1; x <= maxChunk.getX() - 1; x++) {
        for (int z=minChunk.getZ() + 1; z <= maxChunk.getZ() - 1; z++) {
          chunks.add(getWorld().getChunkAt(x,z));
        }
      }
    }
    dList list=new dList();
    for (    Chunk chunk : chunks)     list.add(new dChunk(chunk).identify());
    return list.getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    Set<Chunk> chunks=new HashSet<Chunk>();
    for (    LocationPair pair : pairs) {
      Chunk minChunk=pair.low.getChunk();
      Chunk maxChunk=pair.high.getChunk();
      dB.log("String_Node_Str" + minChunk.getX() + "String_Node_Str"+ minChunk.getZ());
      dB.log("String_Node_Str" + maxChunk.getX() + "String_Node_Str"+ maxChunk.getZ());
      for (int x=minChunk.getX(); x <= maxChunk.getX(); x++) {
        for (int z=minChunk.getZ(); z <= maxChunk.getZ(); z++) {
          chunks.add(getWorld().getChunkAt(x,z));
        }
      }
    }
    dList list=new dList();
    for (    Chunk chunk : chunks)     list.add(new dChunk(chunk).identify());
    return list.getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str")) {
    return new Element(NotableManager.getSavedId(this)).getAttribute(attribute.fulfill(1));
  }
  if (attribute.startsWith("String_Node_Str"))   return new Element(identifyFull()).getAttribute(attribute.fulfill(1));
  for (  Property property : PropertyParser.getProperties(this)) {
    String returned=property.getAttribute(attribute);
    if (returned != null)     return returned;
  }
  return new Element(identify()).getAttribute(attribute);
}