Program: 58019
Project: 58019
Buggy source:
@Override public boolean execute(final PlotPlayer plr,final String... args){
  if ((args.length > 0) && args[0].equalsIgnoreCase("String_Node_Str")) {
    final StringBuilder msg=new StringBuilder();
    for (    final C c : C.values()) {
      msg.append(c.s()).append("String_Node_Str");
    }
    MainUtil.sendMessage(plr,msg.toString());
    return true;
  }
  StringBuilder information;
  String header, line, section;
{
    information=new StringBuilder();
    header=C.DEUBG_HEADER.s();
    line=C.DEBUG_LINE.s();
    section=C.DEBUG_SECTION.s();
  }
{
    final StringBuilder worlds=new StringBuilder("String_Node_Str");
    for (    final String world : PS.get().getPlotWorlds()) {
      worlds.append(world).append("String_Node_Str");
    }
    information.append(header);
    information.append(getSection(section,"String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",Lag.getTPS()));
    information.append(getLine(line,"String_Node_Str",(int)Lag.getPercentage() + "String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",(int)Lag.getFullPercentage() + "String_Node_Str"));
    information.append(getSection(section,"String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",worlds));
    information.append(getLine(line,"String_Node_Str",PS.get().getPlots().size()));
    information.append(getSection(section,"String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",C.values().length));
    information.append(getLine(line,"String_Node_Str","String_Node_Str"));
  }
{
    MainUtil.sendMessage(plr,information.toString());
  }
  return true;
}

Fixed version (ground truth):
@Override public boolean execute(final PlotPlayer plr,final String... args){
  if ((args.length > 0) && args[0].equalsIgnoreCase("String_Node_Str")) {
    final StringBuilder msg=new StringBuilder();
    for (    final C c : C.values()) {
      msg.append(c.s()).append("String_Node_Str");
    }
    MainUtil.sendMessage(plr,msg.toString());
    return true;
  }
  StringBuilder information;
  String header, line, section;
{
    information=new StringBuilder();
    header=C.DEBUG_HEADER.s();
    line=C.DEBUG_LINE.s();
    section=C.DEBUG_SECTION.s();
  }
{
    final StringBuilder worlds=new StringBuilder("String_Node_Str");
    for (    final String world : PS.get().getPlotWorlds()) {
      worlds.append(world).append("String_Node_Str");
    }
    information.append(header);
    information.append(getSection(section,"String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",Lag.getTPS()));
    information.append(getLine(line,"String_Node_Str",(int)Lag.getPercentage() + "String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",(int)Lag.getFullPercentage() + "String_Node_Str"));
    information.append(getSection(section,"String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",worlds));
    information.append(getLine(line,"String_Node_Str",PS.get().getPlots().size()));
    information.append(getSection(section,"String_Node_Str"));
    information.append(getLine(line,"String_Node_Str",C.values().length));
    information.append(getLine(line,"String_Node_Str","String_Node_Str"));
  }
{
    MainUtil.sendMessage(plr,information.toString());
  }
  return true;
}