Program: 83556
Project: 83556
Buggy source:
@Override public void process(String sender,String args,Adapter adapter){
  String[] argsArr=args.trim().split("String_Node_Str",2);
  if (argsArr[0].isEmpty()) {
    adapter.send(getHelpText());
    return;
  }
  if (Bot.dictionary.has(argsArr[0])) {
    adapter.send(Bot.dictionary.get(argsArr[0]).getValue());
    return;
  }
  if (args.startsWith(SIZE)) {
    int size=Bot.dictionary.getSize();
    if (size == -1)     adapter.send(sender + "String_Node_Str");
 else     adapter.send(sender + "String_Node_Str" + Bot.dictionary.getSize()+ "String_Node_Str");
    return;
  }
  if (argsArr.length < 2) {
    adapter.send("String_Node_Str" + argsArr[0]);
    return;
  }
  if (args.startsWith(INFO)) {
    DictionaryItem item=Bot.dictionary.get(argsArr[1]);
    if (item == null)     adapter.send("String_Node_Str" + argsArr[1] + "String_Node_Str");
 else     adapter.send("String_Node_Str" + argsArr[1] + "String_Node_Str"+ item.getAddedBy()+ "String_Node_Str"+ new Date(item.getDate()));
    return;
  }
  if (args.startsWith(FORGET)) {
    if (Bot.dictionary.has(argsArr[1])) {
      try {
        Bot.dictionary.remove(argsArr[1]);
        adapter.send("String_Node_Str");
      }
 catch (      IOException e) {
        adapter.send("String_Node_Str");
      }
catch (      ConfigurationException e) {
        adapter.send("String_Node_Str");
        e.printStackTrace();
      }
    }
 else     adapter.send("String_Node_Str" + argsArr[1]);
    return;
  }
  if (args.indexOf(REPLY_TAG) > 0) {
    int replyTagEndIndex=args.indexOf(REPLY_TAG) + REPLY_TAG.length();
    add(argsArr[0],args.substring(replyTagEndIndex).trim(),sender,adapter);
    return;
  }
  add(argsArr[0],args,sender,adapter);
}

Fixed version (ground truth):
@Override public void process(String sender,String args,Adapter adapter){
  String[] argsArr=args.trim().split("String_Node_Str",2);
  if (argsArr[0].isEmpty()) {
    adapter.send(getHelpText());
    return;
  }
  if (args.startsWith(SIZE)) {
    int size=Bot.dictionary.getSize();
    if (size == -1)     adapter.send(sender + "String_Node_Str");
 else     adapter.send(sender + "String_Node_Str" + Bot.dictionary.getSize()+ "String_Node_Str");
    return;
  }
  if (args.startsWith(INFO)) {
    DictionaryItem item=Bot.dictionary.get(argsArr[1]);
    if (item == null)     adapter.send("String_Node_Str" + argsArr[1] + "String_Node_Str");
 else     adapter.send("String_Node_Str" + argsArr[1] + "String_Node_Str"+ item.getAddedBy()+ "String_Node_Str"+ new Date(item.getDate()));
    return;
  }
  if (args.startsWith(FORGET)) {
    if (Bot.dictionary.has(argsArr[1])) {
      try {
        Bot.dictionary.remove(argsArr[1]);
        adapter.send("String_Node_Str");
      }
 catch (      IOException e) {
        adapter.send("String_Node_Str");
      }
catch (      ConfigurationException e) {
        adapter.send("String_Node_Str");
        e.printStackTrace();
      }
    }
 else     adapter.send("String_Node_Str" + argsArr[1]);
    return;
  }
  if (Bot.dictionary.has(argsArr[0])) {
    adapter.send(Bot.dictionary.get(argsArr[0]).getValue());
    return;
  }
  adapter.send("String_Node_Str" + argsArr[0]);
  return;
}