Program: 58044
Project: 58044
Buggy source:
@Override public boolean execute(final PlotPlayer plr,final String... args){
  if (plr == null) {
    if (args.length < 3) {
      return !MainUtil.sendMessage(null,"String_Node_Str");
    }
    final String world=args[0];
    if (!BlockManager.manager.isWorld(world) || !PlotSquared.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=PlotSquared.getPlotManager(world);
    final PlotWorld plotworld=PlotSquared.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=PlotSquared.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;
            plot.hasChanged=true;
            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.createPlots(plots);
      DBFunc.createAllSettingsAndHelpers(plots);
      for (      final Plot plot : plots) {
        PlotSquared.updatePlot(plot);
      }
      MainUtil.sendMessage(null,"String_Node_Str");
    }
 else {
      MainUtil.sendMessage(null,"String_Node_Str");
    }
  }
 else {
    MainUtil.sendMessage(plr,"String_Node_Str");
  }
  return true;
}

Fixed version (ground truth):
@Override public boolean execute(final PlotPlayer plr,final String... args){
  if (plr == null) {
    if (args.length < 3) {
      return !MainUtil.sendMessage(null,"String_Node_Str");
    }
    final String world=args[0];
    if (!BlockManager.manager.isWorld(world) || !PlotSquared.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=PlotSquared.getPlotManager(world);
    final PlotWorld plotworld=PlotSquared.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=PlotSquared.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;
            plot.hasChanged=true;
            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.createPlots(plots);
      DBFunc.createAllSettingsAndHelpers(plots);
      for (      final Plot plot : plots) {
        PlotSquared.updatePlot(plot);
      }
      MainUtil.sendMessage(null,"String_Node_Str");
    }
 else {
      MainUtil.sendMessage(null,"String_Node_Str");
    }
  }
 else {
    MainUtil.sendMessage(plr,"String_Node_Str");
  }
  return true;
}