Program: 58045
Project: 58045
Buggy source:
@Override public boolean execute(final PlotPlayer player,final String... args){
  final List<String> allowed_params=Arrays.asList(new String[]{"String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str"});
  if (args.length > 0) {
    final String arg=args[0].toLowerCase();
switch (arg) {
case "String_Node_Str":
{
        if (ExpireManager.task != -1) {
          Bukkit.getScheduler().cancelTask(ExpireManager.task);
        }
 else {
          return MainUtil.sendMessage(null,"String_Node_Str");
        }
        ExpireManager.task=-1;
        return MainUtil.sendMessage(null,"String_Node_Str");
      }
case "String_Node_Str":
{
      if (ExpireManager.task == -1) {
        ExpireManager.runTask();
      }
 else {
        return MainUtil.sendMessage(null,"String_Node_Str");
      }
      return MainUtil.sendMessage(null,"String_Node_Str");
    }
case "String_Node_Str":
{
    if (args.length > 1) {
      final String world=args[1];
      if (!BlockManager.manager.isWorld(world)) {
        return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
      }
      MainUtil.sendMessage(null,"String_Node_Str");
      ExpireManager.updateExpired(args[1]);
      return true;
    }
    return MainUtil.sendMessage(null,"String_Node_Str");
  }
case "String_Node_Str":
{
  if (args.length > 1) {
    final String world=args[1];
    if (!BlockManager.manager.isWorld(world)) {
      return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
    }
    if (!ExpireManager.expiredPlots.containsKey(args[1])) {
      return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
    }
    MainUtil.sendMessage(null,"String_Node_Str" + ExpireManager.expiredPlots.get(args[1]).size() + "String_Node_Str");
    for (    final Entry<Plot,Long> entry : ExpireManager.expiredPlots.get(args[1]).entrySet()) {
      final Plot plot=entry.getKey();
      final Long stamp=entry.getValue();
      MainUtil.sendMessage(null,"String_Node_Str" + plot.world + "String_Node_Str"+ plot.id.x+ "String_Node_Str"+ plot.id.y+ "String_Node_Str"+ UUIDHandler.getName(plot.owner)+ "String_Node_Str"+ stamp);
    }
    return true;
  }
  return MainUtil.sendMessage(null,"String_Node_Str");
}
case "String_Node_Str":
{
if (args.length != 2) {
  return MainUtil.sendMessage(null,"String_Node_Str");
}
final UUID uuid=UUIDHandler.getUUID(args[1]);
if (uuid == null) {
  return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
}
final OfflinePlotPlayer op=UUIDHandler.uuidWrapper.getOfflinePlayer(uuid);
if ((op == null) || (op.getLastPlayed() == 0)) {
  return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
}
final Timestamp stamp=new Timestamp(op.getLastPlayed());
final Date date=new Date(stamp.getTime());
MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
MainUtil.sendMessage(null,"String_Node_Str" + uuid);
MainUtil.sendMessage(null,"String_Node_Str" + date.toGMTString());
MainUtil.sendMessage(null,"String_Node_Str" + date.toGMTString());
MainUtil.sendMessage(null,"String_Node_Str" + date.toLocaleString());
return true;
}
case "String_Node_Str":
{
if (args.length != 2) {
MainUtil.sendMessage(null,"String_Node_Str");
MainUtil.sendMessage(null,"String_Node_Str");
return MainUtil.sendMessage(null,"String_Node_Str");
}
final String world=args[1];
if (!BlockManager.manager.isWorld(world) || !PlotSquared.isPlotWorld(args[1])) {
return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
}
final ArrayList<ChunkLoc> empty=new ArrayList<>();
final boolean result=Trim.getTrimRegions(empty,world,new Runnable(){
@Override public void run(){
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str" + empty.size());
  Trim.sendMessage("String_Node_Str" + (empty.size() * 1024) + "String_Node_Str");
  Trim.sendMessage("String_Node_Str");
  final File file=new File(PlotSquared.IMP.getDirectory() + File.separator + "String_Node_Str");
  PrintWriter writer;
  try {
    writer=new PrintWriter(file);
    for (    final ChunkLoc loc : empty) {
      writer.println(world + "String_Node_Str" + loc.x+ "String_Node_Str"+ loc.z+ "String_Node_Str");
    }
    writer.close();
    Trim.sendMessage("String_Node_Str");
  }
 catch (  final FileNotFoundException e) {
    e.printStackTrace();
    Trim.sendMessage("String_Node_Str");
  }
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str");
}
}
);
if (!result) {
MainUtil.sendMessage(null,"String_Node_Str");
}
return result;
}
}
}
MainUtil.sendMessage(player,"String_Node_Str" + StringUtils.join(allowed_params,"String_Node_Str") + "String_Node_Str");
return true;
}

Fixed version (ground truth):
@Override public boolean execute(final PlotPlayer player,final String... args){
  final List<String> allowed_params=Arrays.asList(new String[]{"String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str"});
  if (args.length > 0) {
    final String arg=args[0].toLowerCase();
switch (arg) {
case "String_Node_Str":
{
        if (ExpireManager.task != -1) {
          Bukkit.getScheduler().cancelTask(ExpireManager.task);
        }
 else {
          return MainUtil.sendMessage(null,"String_Node_Str");
        }
        ExpireManager.task=-1;
        return MainUtil.sendMessage(null,"String_Node_Str");
      }
case "String_Node_Str":
{
      if (ExpireManager.task == -1) {
        ExpireManager.runTask();
      }
 else {
        return MainUtil.sendMessage(null,"String_Node_Str");
      }
      return MainUtil.sendMessage(null,"String_Node_Str");
    }
case "String_Node_Str":
{
    if (args.length > 1) {
      final String world=args[1];
      if (!BlockManager.manager.isWorld(world)) {
        return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
      }
      MainUtil.sendMessage(null,"String_Node_Str");
      ExpireManager.updateExpired(args[1]);
      return true;
    }
    return MainUtil.sendMessage(null,"String_Node_Str");
  }
case "String_Node_Str":
{
  if (args.length > 1) {
    final String world=args[1];
    if (!BlockManager.manager.isWorld(world)) {
      return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
    }
    if (!ExpireManager.expiredPlots.containsKey(args[1])) {
      return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
    }
    MainUtil.sendMessage(null,"String_Node_Str" + ExpireManager.expiredPlots.get(args[1]).size() + "String_Node_Str");
    for (    final Entry<Plot,Long> entry : ExpireManager.expiredPlots.get(args[1]).entrySet()) {
      final Plot plot=entry.getKey();
      final Long stamp=entry.getValue();
      MainUtil.sendMessage(null,"String_Node_Str" + plot.world + "String_Node_Str"+ plot.id.x+ "String_Node_Str"+ plot.id.y+ "String_Node_Str"+ UUIDHandler.getName(plot.owner_)+ "String_Node_Str"+ stamp);
    }
    return true;
  }
  return MainUtil.sendMessage(null,"String_Node_Str");
}
case "String_Node_Str":
{
if (args.length != 2) {
  return MainUtil.sendMessage(null,"String_Node_Str");
}
final UUID uuid=UUIDHandler.getUUID(args[1]);
if (uuid == null) {
  return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
}
final OfflinePlotPlayer op=UUIDHandler.uuidWrapper.getOfflinePlayer(uuid);
if ((op == null) || (op.getLastPlayed() == 0)) {
  return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
}
final Timestamp stamp=new Timestamp(op.getLastPlayed());
final Date date=new Date(stamp.getTime());
MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
MainUtil.sendMessage(null,"String_Node_Str" + uuid);
MainUtil.sendMessage(null,"String_Node_Str" + date.toGMTString());
MainUtil.sendMessage(null,"String_Node_Str" + date.toGMTString());
MainUtil.sendMessage(null,"String_Node_Str" + date.toLocaleString());
return true;
}
case "String_Node_Str":
{
if (args.length != 2) {
MainUtil.sendMessage(null,"String_Node_Str");
MainUtil.sendMessage(null,"String_Node_Str");
return MainUtil.sendMessage(null,"String_Node_Str");
}
final String world=args[1];
if (!BlockManager.manager.isWorld(world) || !PlotSquared.isPlotWorld(args[1])) {
return MainUtil.sendMessage(null,"String_Node_Str" + args[1]);
}
final ArrayList<ChunkLoc> empty=new ArrayList<>();
final boolean result=Trim.getTrimRegions(empty,world,new Runnable(){
@Override public void run(){
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str" + empty.size());
  Trim.sendMessage("String_Node_Str" + (empty.size() * 1024) + "String_Node_Str");
  Trim.sendMessage("String_Node_Str");
  final File file=new File(PlotSquared.IMP.getDirectory() + File.separator + "String_Node_Str");
  PrintWriter writer;
  try {
    writer=new PrintWriter(file);
    for (    final ChunkLoc loc : empty) {
      writer.println(world + "String_Node_Str" + loc.x+ "String_Node_Str"+ loc.z+ "String_Node_Str");
    }
    writer.close();
    Trim.sendMessage("String_Node_Str");
  }
 catch (  final FileNotFoundException e) {
    e.printStackTrace();
    Trim.sendMessage("String_Node_Str");
  }
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str");
  Trim.sendMessage("String_Node_Str");
}
}
);
if (!result) {
MainUtil.sendMessage(null,"String_Node_Str");
}
return result;
}
}
}
MainUtil.sendMessage(player,"String_Node_Str" + StringUtils.join(allowed_params,"String_Node_Str") + "String_Node_Str");
return true;
}