Program: 57980
Project: 57980
Buggy source:
public static List<String> helpMenu(final PlotPlayer player,final CommandCategory category,int page){
  List<Command> commands;
  if (category != null) {
    commands=getCommands(category,player);
  }
 else {
    commands=instance.commands;
  }
  final int perPage=5;
  final int totalPages=(commands.size() / perPage) + (commands.size() % perPage == 0 ? 0 : 1);
  if (page > totalPages) {
    page=totalPages;
  }
  int max=(page * perPage) + perPage;
  if (max > commands.size()) {
    max=commands.size();
  }
  final List<String> help=new ArrayList<>();
  help.add(C.HELP_HEADER.s());
  help.add(C.HELP_CATEGORY.s().replace("String_Node_Str",category == null ? "String_Node_Str" : category.toString()).replace("String_Node_Str","String_Node_Str" + (page + 1)).replace("String_Node_Str","String_Node_Str" + (totalPages)).replace("String_Node_Str","String_Node_Str" + perPage).replace("String_Node_Str","String_Node_Str" + commands.size()));
  Command cmd;
  final int start=page * perPage;
  for (int x=start; x < max; x++) {
    cmd=commands.get(x);
    String s=C.HELP_ITEM.s();
    if (cmd.getAliases().length > 0) {
      s=s.replace("String_Node_Str",cmd.getAliases()[0]);
    }
 else {
      s=s.replace("String_Node_Str","String_Node_Str");
    }
    s=s.replace("String_Node_Str",cmd.getUsage().contains("String_Node_Str") ? cmd.getUsage() : "String_Node_Str" + cmd.getUsage()).replace("String_Node_Str",cmd.getCommand()).replace("String_Node_Str",cmd.getDescription()).replace("String_Node_Str","String_Node_Str");
    help.add(s);
  }
  if (help.size() < 2) {
    help.add(C.NO_COMMANDS.s());
  }
  return help;
}

Fixed version (ground truth):
public static List<String> helpMenu(final PlotPlayer player,final CommandCategory category,int page){
  List<Command> commands;
  commands=getCommands(category,player);
  final int perPage=5;
  final int totalPages=(commands.size() / perPage) + (commands.size() % perPage == 0 ? 0 : 1);
  if (page > totalPages) {
    page=totalPages;
  }
  int max=(page * perPage) + perPage;
  if (max > commands.size()) {
    max=commands.size();
  }
  final List<String> help=new ArrayList<>();
  help.add(C.HELP_HEADER.s());
  help.add(C.HELP_CATEGORY.s().replace("String_Node_Str",category == null ? "String_Node_Str" : category.toString()).replace("String_Node_Str","String_Node_Str" + (page + 1)).replace("String_Node_Str","String_Node_Str" + (totalPages)).replace("String_Node_Str","String_Node_Str" + perPage).replace("String_Node_Str","String_Node_Str" + commands.size()));
  Command cmd;
  final int start=page * perPage;
  for (int x=start; x < max; x++) {
    cmd=commands.get(x);
    String s=C.HELP_ITEM.s();
    if (cmd.getAliases().size() > 0) {
      s=s.replace("String_Node_Str",StringMan.join(cmd.getAliases(),"String_Node_Str"));
    }
 else {
      s=s.replace("String_Node_Str","String_Node_Str");
    }
    s=s.replace("String_Node_Str",cmd.getUsage().contains("String_Node_Str") ? cmd.getUsage() : "String_Node_Str" + cmd.getUsage()).replace("String_Node_Str",cmd.getCommand()).replace("String_Node_Str",cmd.getDescription()).replace("String_Node_Str","String_Node_Str");
    help.add(s);
  }
  if (help.size() < 2) {
    help.add(C.NO_COMMANDS.s());
  }
  return help;
}