Program: 174073
Project: 174073
Buggy source:
@Override protected void execute(CommandEvent event){
  String ranks;
  String roles;
  String emote;
  EmbedBuilder builder=new EmbedBuilder();
  Member member;
  if (event.getArgs().isEmpty())   member=event.getMessage().getMember();
 else {
    List<Member> list=FinderUtil.findMembers(event.getArgs(),event.getGuild());
    if (list.isEmpty()) {
      event.replyWarning("String_Node_Str" + event.getArgs() + "String_Node_Str");
      return;
    }
 else     if (list.size() > 1) {
      event.replyWarning(FormatUtil.listOfMembers(list,event.getArgs()));
      return;
    }
 else     member=list.get(0);
  }
  String strjoins;
  List<Member> joins=new ArrayList<>(event.getGuild().getMembers());
  Collections.sort(joins,(  Member a,  Member b) -> a.getJoinDate().compareTo(b.getJoinDate()));
  int index=joins.indexOf(member);
  int joinnumber=index;
  index-=3;
  if (index < 0)   index=0;
  if (joins.get(index).equals(member))   strjoins="String_Node_Str" + joins.get(index).getUser().getName() + "String_Node_Str";
 else   strjoins=joins.get(index).getUser().getName();
  for (int i=index + 1; i < index + 7; i++) {
    if (i > joins.size())     break;
    Member m=joins.get(i);
    String name=m.getUser().getName();
    if (m.equals(member))     name="String_Node_Str" + name + "String_Node_Str";
    strjoins+="String_Node_Str" + name;
  }
  roles=InfoTools.mentionUserRoles(member);
  emote=InfoTools.onlineStatus(member);
  if (InfoTools.nitroCheck(member.getUser()))   ranks="String_Node_Str";
 else   ranks="String_Node_Str";
  String title=(member.getUser().isBot() ? "String_Node_Str" + member.getUser().getName() + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ member.getUser().getDiscriminator()+ "String_Node_Str" : "String_Node_Str" + member.getUser().getName() + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ member.getUser().getDiscriminator()+ "String_Node_Str"+ ranks);
  try {
    builder.addField("String_Node_Str",member.getUser().getId(),true);
    builder.addField("String_Node_Str",(member.getNickname() == null ? "String_Node_Str" : member.getNickname()),true);
    builder.addField("String_Node_Str",roles,false);
    builder.addField(emote + "String_Node_Str",member.getOnlineStatus() + (member.getGame() == null ? "String_Node_Str" : "String_Node_Str" + (member.getGame().getType() == Game.GameType.STREAMING ? "String_Node_Str" + member.getGame().getName() + "String_Node_Str" : "String_Node_Str" + member.getGame().getName()) + "String_Node_Str"+ "String_Node_Str"),false);
    builder.addField("String_Node_Str",member.getUser().getCreationTime().format(DateTimeFormatter.RFC_1123_DATE_TIME),true);
    builder.addField("String_Node_Str",member.getJoinDate().format(DateTimeFormatter.RFC_1123_DATE_TIME),true);
    builder.addField("String_Node_Str" + (joinnumber + 1) + "String_Node_Str",strjoins,false);
    builder.setThumbnail(member.getUser().getEffectiveAvatarUrl());
    builder.setColor(member.getColor());
    event.getChannel().sendMessage(new MessageBuilder().append(title).setEmbed(builder.build()).build()).queue();
  }
 catch (  Exception e) {
    event.replyError("String_Node_Str" + e + "String_Node_Str");
  }
}

Fixed version (ground truth):
@Override protected void execute(CommandEvent event){
  String ranks;
  String roles;
  String emote;
  EmbedBuilder builder=new EmbedBuilder();
  Member member;
  if (event.getArgs().isEmpty())   member=event.getMessage().getMember();
 else {
    List<Member> list=FinderUtil.findMembers(event.getArgs(),event.getGuild());
    if (list.isEmpty()) {
      event.replyWarning("String_Node_Str" + event.getArgs() + "String_Node_Str");
      return;
    }
 else     if (list.size() > 1) {
      event.replyWarning(FormatUtil.listOfMembers(list,event.getArgs()));
      return;
    }
 else     member=list.get(0);
  }
  String strjoins;
  List<Member> joins=new ArrayList<>(event.getGuild().getMembers());
  Collections.sort(joins,(  Member a,  Member b) -> a.getJoinDate().compareTo(b.getJoinDate()));
  int index=joins.indexOf(member);
  int joinnumber=index;
  index-=3;
  if (index < 0)   index=0;
  if (joins.get(index).equals(member))   strjoins="String_Node_Str" + joins.get(index).getUser().getName() + "String_Node_Str";
 else   strjoins=joins.get(index).getUser().getName();
  for (int i=index + 1; i < index + 7; i++) {
    if (i >= joins.size())     break;
    Member m=joins.get(i);
    String name=m.getUser().getName();
    if (m.equals(member))     name="String_Node_Str" + name + "String_Node_Str";
    strjoins+="String_Node_Str" + name;
  }
  roles=InfoTools.mentionUserRoles(member);
  emote=InfoTools.onlineStatus(member);
  if (InfoTools.nitroCheck(member.getUser()))   ranks="String_Node_Str";
 else   ranks="String_Node_Str";
  String title=(member.getUser().isBot() ? "String_Node_Str" + member.getUser().getName() + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ member.getUser().getDiscriminator()+ "String_Node_Str" : "String_Node_Str" + member.getUser().getName() + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str"+ member.getUser().getDiscriminator()+ "String_Node_Str"+ ranks);
  try {
    builder.addField("String_Node_Str",member.getUser().getId(),true);
    builder.addField("String_Node_Str",(member.getNickname() == null ? "String_Node_Str" : member.getNickname()),true);
    builder.addField("String_Node_Str",roles,false);
    builder.addField(emote + "String_Node_Str",member.getOnlineStatus() + (member.getGame() == null ? "String_Node_Str" : "String_Node_Str" + (member.getGame().getType() == Game.GameType.STREAMING ? "String_Node_Str" + member.getGame().getName() + "String_Node_Str" : "String_Node_Str" + member.getGame().getName()) + "String_Node_Str"+ "String_Node_Str"),false);
    builder.addField("String_Node_Str",member.getUser().getCreationTime().format(DateTimeFormatter.RFC_1123_DATE_TIME),true);
    builder.addField("String_Node_Str",member.getJoinDate().format(DateTimeFormatter.RFC_1123_DATE_TIME),true);
    builder.addField("String_Node_Str" + (joinnumber + 1) + "String_Node_Str",strjoins,false);
    builder.setThumbnail(member.getUser().getEffectiveAvatarUrl());
    builder.setColor(member.getColor());
    event.getChannel().sendMessage(new MessageBuilder().append(title).setEmbed(builder.build()).build()).queue();
  }
 catch (  Exception e) {
    event.replyError("String_Node_Str" + e + "String_Node_Str");
  }
}