Program: 24538
Project: 24538
Buggy source:
public void processMessage(Chat chat,Message message){
  if (message.getType().equals(Message.Type.chat) && message.getBody() != null) {
    System.out.println("String_Node_Str" + message.getBody());
    if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      forwardMessages=false;
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      forwardMessages=true;
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      try {
        chat.sendMessage("String_Node_Str" + "String_Node_Str" + forwardMessages + "String_Node_Str");
      }
 catch (      XMPPException e) {
        System.out.println("String_Node_Str");
      }
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      try {
        User[] users=botManager.getUsers(botManager.getChannel());
        String userList="String_Node_Str";
        for (        User u : users) {
          userList+=(u.getNick() + "String_Node_Str");
        }
        chat.sendMessage(userList);
      }
 catch (      XMPPException e) {
        System.out.println("String_Node_Str");
      }
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      try {
        botManager.reconnect();
      }
 catch (      Exception e) {
        e.printStackTrace();
        try {
          chat.sendMessage(e.toString());
        }
 catch (        XMPPException e1) {
          e1.printStackTrace();
        }
      }
    }
 else {
      botManager.sendMessage(message.getBody(),getThis());
    }
  }
 else {
    System.out.println("String_Node_Str");
  }
}

Fixed version (ground truth):
public void processMessage(Chat chat,Message message){
  if (message.getType().equals(Message.Type.chat) && message.getBody() != null) {
    System.out.println("String_Node_Str" + message.getBody());
    if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      forwardMessages=false;
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      forwardMessages=true;
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      try {
        chat.sendMessage("String_Node_Str" + "String_Node_Str" + forwardMessages + "String_Node_Str");
      }
 catch (      XMPPException e) {
        System.out.println("String_Node_Str");
      }
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      try {
        User[] users=botManager.getUsers(botManager.getChannel());
        String userList="String_Node_Str";
        for (        User u : users) {
          userList+=(u.getNick() + "String_Node_Str");
        }
        chat.sendMessage(userList);
      }
 catch (      XMPPException e) {
        System.out.println("String_Node_Str");
      }
    }
 else     if (message.getBody().equalsIgnoreCase("String_Node_Str")) {
      try {
        botManager.disconnect();
      }
 catch (      Exception e) {
        e.printStackTrace();
        try {
          chat.sendMessage(e.toString());
        }
 catch (        XMPPException e1) {
          e1.printStackTrace();
        }
      }
      try {
        botManager.reconnect();
      }
 catch (      Exception e) {
        e.printStackTrace();
        try {
          chat.sendMessage(e.toString());
        }
 catch (        XMPPException e1) {
          e1.printStackTrace();
        }
      }
    }
 else {
      botManager.sendMessage(message.getBody(),getThis());
    }
  }
 else {
    System.out.println("String_Node_Str");
  }
}