Program: 57992
Project: 57992
Buggy source:
@Override public boolean onCommand(CommandCaller caller,String[] args){
  if (args.length < 3) {
    return !MainUtil.sendMessage(null,"String_Node_Str");
  }
  final String world=args[0];
  if (!BlockManager.manager.isWorld(world) || !PS.get().isPlotWorld(world)) {
    return !MainUtil.sendMessage(null,"String_Node_Str");
  }
  PlotId min, max;
  try {
    final String[] split1=args[1].split("String_Node_Str");
    final String[] split2=args[2].split("String_Node_Str");
    min=new PlotId(Integer.parseInt(split1[0]),Integer.parseInt(split1[1]));
    max=new PlotId(Integer.parseInt(split2[0]),Integer.parseInt(split2[1]));
  }
 catch (  final Exception e) {
    return !MainUtil.sendMessage(null,"String_Node_Str");
  }
  MainUtil.sendMessage(null,"String_Node_Str");
  MainUtil.sendMessage(null,"String_Node_Str");
  final PlotManager manager=PS.get().getPlotManager(world);
  final PlotWorld plotworld=PS.get().getPlotWorld(world);
  final ArrayList<Plot> plots=new ArrayList<>();
  for (  final PlotId id : MainUtil.getPlotSelectionIds(min,max)) {
    final Plot plot=MainUtil.getPlot(world,id);
    final boolean contains=PS.get().getPlots(world).containsKey(plot.id);
    if (contains) {
      MainUtil.sendMessage(null,"String_Node_Str" + plot.id);
      continue;
    }
    final Location loc=manager.getSignLoc(plotworld,plot);
    final ChunkLoc chunk=new ChunkLoc(loc.getX() >> 4,loc.getZ() >> 4);
    final boolean result=ChunkManager.manager.loadChunk(world,chunk);
    if (!result) {
      continue;
    }
    final String[] lines=BlockManager.manager.getSign(loc);
    if (lines != null) {
      String line=lines[2];
      if ((line != null) && (line.length() > 2)) {
        line=line.substring(2);
        final BiMap<StringWrapper,UUID> map=UUIDHandler.getUuidMap();
        UUID uuid=(map.get(new StringWrapper(line)));
        if (uuid == null) {
          for (          final StringWrapper string : map.keySet()) {
            if (string.value.toLowerCase().startsWith(line.toLowerCase())) {
              uuid=map.get(string);
              break;
            }
          }
        }
        if (uuid == null) {
          uuid=UUIDHandler.getUUID(line);
        }
        if (uuid != null) {
          MainUtil.sendMessage(null,"String_Node_Str" + plot.id + "String_Node_Str"+ line);
          plot.owner=uuid;
          plots.add(plot);
        }
 else {
          MainUtil.sendMessage(null,"String_Node_Str" + plot.id + "String_Node_Str"+ line);
        }
      }
    }
  }
  if (plots.size() > 0) {
    MainUtil.sendMessage(null,"String_Node_Str" + plots.size() + "String_Node_Str");
    DBFunc.createPlotsAndData(plots,new Runnable(){
      @Override public void run(){
        MainUtil.sendMessage(null,"String_Node_Str");
      }
    }
);
    for (    final Plot plot : plots) {
      PS.get().updatePlot(plot);
    }
    MainUtil.sendMessage(null,"String_Node_Str");
  }
 else {
    MainUtil.sendMessage(null,"String_Node_Str");
  }
  return true;
}

Fixed version (ground truth):
@Override public boolean onCommand(CommandCaller caller,String[] args){
  if (args.length < 3) {
    return !MainUtil.sendMessage(null,"String_Node_Str");
  }
  final String world=args[0];
  if (!BlockManager.manager.isWorld(world) || !PS.get().isPlotWorld(world)) {
    return !MainUtil.sendMessage(null,"String_Node_Str");
  }
  PlotId min, max;
  try {
    final String[] split1=args[1].split("String_Node_Str");
    final String[] split2=args[2].split("String_Node_Str");
    min=new PlotId(Integer.parseInt(split1[0]),Integer.parseInt(split1[1]));
    max=new PlotId(Integer.parseInt(split2[0]),Integer.parseInt(split2[1]));
  }
 catch (  final Exception e) {
    return !MainUtil.sendMessage(null,"String_Node_Str");
  }
  MainUtil.sendMessage(null,"String_Node_Str");
  MainUtil.sendMessage(null,"String_Node_Str");
  final PlotManager manager=PS.get().getPlotManager(world);
  final PlotWorld plotworld=PS.get().getPlotWorld(world);
  final ArrayList<Plot> plots=new ArrayList<>();
  for (  final PlotId id : MainUtil.getPlotSelectionIds(min,max)) {
    final Plot plot=MainUtil.getPlot(world,id);
    final boolean contains=PS.get().getPlots(world).containsKey(plot.id);
    if (contains) {
      MainUtil.sendMessage(null,"String_Node_Str" + plot.id);
      continue;
    }
    final Location loc=manager.getSignLoc(plotworld,plot);
    final ChunkLoc chunk=new ChunkLoc(loc.getX() >> 4,loc.getZ() >> 4);
    final boolean result=ChunkManager.manager.loadChunk(world,chunk);
    if (!result) {
      continue;
    }
    final String[] lines=BlockManager.manager.getSign(loc);
    if (lines != null) {
      String line=lines[2];
      if ((line != null) && (line.length() > 2)) {
        line=line.substring(2);
        final BiMap<StringWrapper,UUID> map=UUIDHandler.getUuidMap();
        UUID uuid=(map.get(new StringWrapper(line)));
        if (uuid == null) {
          for (          final StringWrapper string : map.keySet()) {
            if (string.value.toLowerCase().startsWith(line.toLowerCase())) {
              uuid=map.get(string);
              break;
            }
          }
        }
        if (uuid == null) {
          uuid=UUIDHandler.getUUID(line,null);
        }
        if (uuid != null) {
          MainUtil.sendMessage(null,"String_Node_Str" + plot.id + "String_Node_Str"+ line);
          plot.owner=uuid;
          plots.add(plot);
        }
 else {
          MainUtil.sendMessage(null,"String_Node_Str" + plot.id + "String_Node_Str"+ line);
        }
      }
    }
  }
  if (plots.size() > 0) {
    MainUtil.sendMessage(null,"String_Node_Str" + plots.size() + "String_Node_Str");
    DBFunc.createPlotsAndData(plots,new Runnable(){
      @Override public void run(){
        MainUtil.sendMessage(null,"String_Node_Str");
      }
    }
);
    for (    final Plot plot : plots) {
      PS.get().updatePlot(plot);
    }
    MainUtil.sendMessage(null,"String_Node_Str");
  }
 else {
    MainUtil.sendMessage(null,"String_Node_Str");
  }
  return true;
}