Program: 153682
Project: 153682
Buggy source:
public boolean ircCommand(String host,String nick,String[] command){
  if (!j2.ircEnable)   return false;
  int lvl=0;
  String adminName="String_Node_Str";
synchronized (adminsLock) {
    for (    ircAdmin admin : admins) {
      if (admin != null && admin.getHostname().equals(host)) {
        lvl=admin.getLevel();
        adminName=admin.getUsername();
      }
    }
  }
  if (command[0].charAt(0) == '.') {
    command[0]=command[0].substring(1);
  }
  if (lvl == 0 || (lvl == 2 && !ircLevel2(command[0]))) {
    return false;
  }
  String commands=j2.combineSplit(0,command,"String_Node_Str");
  String com=command[0];
  boolean done=false;
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 2) {
    j2.kickbans.forceKick(command[1],j2.combineSplit(2,command,"String_Node_Str"));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 2) {
    j2.kickbans.callBan(adminName,command,new Location(j2.getServer().getWorlds().get(0),0,0,0,0,0));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 1) {
    j2.chat.gMsg(adminName,j2.combineSplit(1,command,"String_Node_Str"));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 1) {
    j2.chat.aMsg(adminName,j2.combineSplit(1,command,"String_Node_Str"));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 2) {
    j2.kickbans.callAddBan(adminName,command,new Location(j2.getServer().getWorlds().get(0),0,0,0,0,0));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 1) {
    j2.kickbans.unban(adminName,command[1]);
    done=true;
  }
  if (done) {
    j2.log.log(Level.INFO,"String_Node_Str" + adminName + "String_Node_Str"+ nick+ "String_Node_Str"+ host+ "String_Node_Str"+ commands);
  }
 else {
    j2.log.log(Level.INFO,"String_Node_Str" + adminName + "String_Node_Str"+ nick+ "String_Node_Str"+ host+ "String_Node_Str"+ commands);
  }
  return done;
}

Fixed version (ground truth):
public boolean ircCommand(String host,String nick,String[] command){
  if (!j2.ircEnable)   return false;
  int lvl=0;
  String adminName="String_Node_Str";
synchronized (adminsLock) {
    for (    ircAdmin admin : admins) {
      if (admin != null && admin.getHostname().equals(host)) {
        lvl=admin.getLevel();
        adminName=admin.getUsername();
      }
    }
  }
  if (command[0].charAt(0) == '.') {
    command[0]=command[0].substring(1);
  }
  if (lvl == 0 || (lvl == 2 && !ircLevel2(command[0]))) {
    return false;
  }
  String commands=j2.combineSplit(0,command,"String_Node_Str");
  String com=command[0];
  boolean done=false;
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 2) {
    j2.kickbans.callKick(command[1],adminName,j2.combineSplit(2,command,"String_Node_Str"));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 2) {
    j2.kickbans.callBan(adminName,command,new Location(j2.getServer().getWorlds().get(0),0,0,0,0,0));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 1) {
    j2.chat.gMsg(adminName,j2.combineSplit(1,command,"String_Node_Str"));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 1) {
    j2.chat.aMsg(adminName,j2.combineSplit(1,command,"String_Node_Str"));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 2) {
    j2.kickbans.callAddBan(adminName,command,new Location(j2.getServer().getWorlds().get(0),0,0,0,0,0));
    done=true;
  }
  if (com.equalsIgnoreCase("String_Node_Str") && command.length > 1) {
    j2.kickbans.unban(adminName,command[1]);
    done=true;
  }
  if (done) {
    j2.log.log(Level.INFO,"String_Node_Str" + adminName + "String_Node_Str"+ nick+ "String_Node_Str"+ host+ "String_Node_Str"+ commands);
  }
 else {
    j2.log.log(Level.INFO,"String_Node_Str" + adminName + "String_Node_Str"+ nick+ "String_Node_Str"+ host+ "String_Node_Str"+ commands);
  }
  return done;
}