Program: 184746
Project: 184746
Buggy source:
public void register(AtParser parser){
  parser.register("String_Node_Str",new AtCommandHandler(){
    @Override public AtCommandResult handleReadCommand(){
      return new AtCommandResult("String_Node_Str");
    }
    @Override public AtCommandResult handleSetCommand(    Object[] args){
      if (args.length < 1) {
        return new AtCommandResult(AtCommandResult.ERROR);
      }
      if (((String)args[0]).equals("String_Node_Str") || ((String)args[0]).equals("String_Node_Str") || ((String)args[0]).equals("String_Node_Str")|| ((String)args[0]).equals("String_Node_Str")) {
        return new AtCommandResult(AtCommandResult.OK);
      }
 else {
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_SUPPORTED);
      }
    }
    @Override public AtCommandResult handleTestCommand(){
      return new AtCommandResult("String_Node_Str");
    }
  }
);
  parser.register("String_Node_Str",new AtCommandHandler(){
    @Override public AtCommandResult handleReadCommand(){
      if ("String_Node_Str".equals(mCurrentPhonebook)) {
        return new AtCommandResult("String_Node_Str" + MAX_PHONEBOOK_SIZE);
      }
      PhonebookResult pbr=getPhonebookResult(mCurrentPhonebook,true);
      if (pbr == null) {
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_ALLOWED);
      }
      return new AtCommandResult("String_Node_Str" + mCurrentPhonebook + "String_Node_Str"+ pbr.cursor.getCount()+ "String_Node_Str"+ MAX_PHONEBOOK_SIZE);
    }
    @Override public AtCommandResult handleSetCommand(    Object[] args){
      if (args.length < 1 || !(args[0] instanceof String)) {
        return new AtCommandResult(AtCommandResult.ERROR);
      }
      String pb=((String)args[0]).trim();
      while (pb.endsWith("String_Node_Str"))       pb=pb.substring(0,pb.length() - 1);
      while (pb.startsWith("String_Node_Str"))       pb=pb.substring(1,pb.length());
      if (getPhonebookResult(pb,false) == null && !"String_Node_Str".equals(pb)) {
        if (DBG)         log("String_Node_Str" + pb + "String_Node_Str");
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_SUPPORTED);
      }
      mCurrentPhonebook=pb;
      return new AtCommandResult(AtCommandResult.OK);
    }
    @Override public AtCommandResult handleTestCommand(){
      return new AtCommandResult("String_Node_Str");
    }
  }
);
  parser.register("String_Node_Str",new AtCommandHandler(){
    @Override public AtCommandResult handleSetCommand(    Object[] args){
      int index1;
      int index2;
      if (args.length < 1 || !(args[0] instanceof Integer)) {
        return new AtCommandResult(AtCommandResult.ERROR);
      }
 else {
        index1=(Integer)args[0];
      }
      if (args.length == 1) {
        index2=index1;
      }
 else       if (!(args[1] instanceof Integer)) {
        return mHandsfree.reportCmeError(BluetoothCmeError.TEXT_HAS_INVALID_CHARS);
      }
 else {
        index2=(Integer)args[1];
      }
      if ("String_Node_Str".equals(mCurrentPhonebook)) {
        return new AtCommandResult(AtCommandResult.OK);
      }
      PhonebookResult pbr=getPhonebookResult(mCurrentPhonebook,false);
      if (pbr == null) {
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_ALLOWED);
      }
      if (pbr.cursor.getCount() == 0 || index1 <= 0 || index2 < index1 || index2 > pbr.cursor.getCount() || index1 > pbr.cursor.getCount()) {
        return new AtCommandResult(AtCommandResult.OK);
      }
      AtCommandResult result=new AtCommandResult(AtCommandResult.OK);
      int errorDetected=-1;
      pbr.cursor.moveToPosition(index1 - 1);
      for (int index=index1; index <= index2; index++) {
        String number=pbr.cursor.getString(pbr.numberColumn);
        String name=null;
        int type=-1;
        if (pbr.nameColumn == -1) {
          Cursor c=mContext.getContentResolver().query(Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,number),new String[]{PhoneLookup.DISPLAY_NAME,PhoneLookup.TYPE},null,null,null);
          if (c != null) {
            if (c.moveToFirst()) {
              name=c.getString(0);
              type=c.getInt(1);
            }
            c.close();
          }
          if (DBG && name == null)           log("String_Node_Str" + number);
        }
 else {
          name=pbr.cursor.getString(pbr.nameColumn);
        }
        if (name == null)         name="String_Node_Str";
        name=name.trim();
        if (name.length() > 28)         name=name.substring(0,28);
        if (pbr.typeColumn != -1) {
          type=pbr.cursor.getInt(pbr.typeColumn);
          name=name + "String_Node_Str" + getPhoneType(type);
        }
        int regionType=PhoneNumberUtils.toaFromString(number);
        number=number.trim();
        number=PhoneNumberUtils.stripSeparators(number);
        if (number.length() > 30)         number=number.substring(0,30);
        if (number.equals("String_Node_Str")) {
          number="String_Node_Str";
          name="String_Node_Str";
        }
        result.addResponse("String_Node_Str" + index + "String_Node_Str"+ number+ "String_Node_Str"+ regionType+ "String_Node_Str"+ name+ "String_Node_Str");
        if (!pbr.cursor.moveToNext()) {
          break;
        }
      }
      return result;
    }
    @Override public AtCommandResult handleTestCommand(){
      int size;
      if ("String_Node_Str".equals(mCurrentPhonebook)) {
        size=0;
      }
 else {
        PhonebookResult pbr=getPhonebookResult(mCurrentPhonebook,false);
        if (pbr == null) {
          return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_ALLOWED);
        }
        size=pbr.cursor.getCount();
      }
      if (size == 0) {
        size=1;
      }
      return new AtCommandResult("String_Node_Str" + size + "String_Node_Str");
    }
  }
);
}

Fixed version (ground truth):
public void register(AtParser parser){
  parser.register("String_Node_Str",new AtCommandHandler(){
    @Override public AtCommandResult handleReadCommand(){
      return new AtCommandResult("String_Node_Str");
    }
    @Override public AtCommandResult handleSetCommand(    Object[] args){
      if (args.length < 1) {
        return new AtCommandResult(AtCommandResult.ERROR);
      }
      if (((String)args[0]).equals("String_Node_Str") || ((String)args[0]).equals("String_Node_Str") || ((String)args[0]).equals("String_Node_Str")|| ((String)args[0]).equals("String_Node_Str")) {
        return new AtCommandResult(AtCommandResult.OK);
      }
 else {
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_SUPPORTED);
      }
    }
    @Override public AtCommandResult handleTestCommand(){
      return new AtCommandResult("String_Node_Str");
    }
  }
);
  parser.register("String_Node_Str",new AtCommandHandler(){
    @Override public AtCommandResult handleReadCommand(){
      if ("String_Node_Str".equals(mCurrentPhonebook)) {
        return new AtCommandResult("String_Node_Str" + getMaxPhoneBookSize(0));
      }
      PhonebookResult pbr=getPhonebookResult(mCurrentPhonebook,true);
      if (pbr == null) {
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_ALLOWED);
      }
      int size=pbr.cursor.getCount();
      return new AtCommandResult("String_Node_Str" + mCurrentPhonebook + "String_Node_Str"+ size+ "String_Node_Str"+ getMaxPhoneBookSize(size));
    }
    @Override public AtCommandResult handleSetCommand(    Object[] args){
      if (args.length < 1 || !(args[0] instanceof String)) {
        return new AtCommandResult(AtCommandResult.ERROR);
      }
      String pb=((String)args[0]).trim();
      while (pb.endsWith("String_Node_Str"))       pb=pb.substring(0,pb.length() - 1);
      while (pb.startsWith("String_Node_Str"))       pb=pb.substring(1,pb.length());
      if (getPhonebookResult(pb,false) == null && !"String_Node_Str".equals(pb)) {
        if (DBG)         log("String_Node_Str" + pb + "String_Node_Str");
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_SUPPORTED);
      }
      mCurrentPhonebook=pb;
      return new AtCommandResult(AtCommandResult.OK);
    }
    @Override public AtCommandResult handleTestCommand(){
      return new AtCommandResult("String_Node_Str");
    }
  }
);
  parser.register("String_Node_Str",new AtCommandHandler(){
    @Override public AtCommandResult handleSetCommand(    Object[] args){
      int index1;
      int index2;
      if (args.length < 1 || !(args[0] instanceof Integer)) {
        return new AtCommandResult(AtCommandResult.ERROR);
      }
 else {
        index1=(Integer)args[0];
      }
      if (args.length == 1) {
        index2=index1;
      }
 else       if (!(args[1] instanceof Integer)) {
        return mHandsfree.reportCmeError(BluetoothCmeError.TEXT_HAS_INVALID_CHARS);
      }
 else {
        index2=(Integer)args[1];
      }
      if ("String_Node_Str".equals(mCurrentPhonebook)) {
        return new AtCommandResult(AtCommandResult.OK);
      }
      PhonebookResult pbr=getPhonebookResult(mCurrentPhonebook,false);
      if (pbr == null) {
        return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_ALLOWED);
      }
      if (pbr.cursor.getCount() == 0 || index1 <= 0 || index2 < index1 || index2 > pbr.cursor.getCount() || index1 > pbr.cursor.getCount()) {
        return new AtCommandResult(AtCommandResult.OK);
      }
      AtCommandResult result=new AtCommandResult(AtCommandResult.OK);
      int errorDetected=-1;
      pbr.cursor.moveToPosition(index1 - 1);
      for (int index=index1; index <= index2; index++) {
        String number=pbr.cursor.getString(pbr.numberColumn);
        String name=null;
        int type=-1;
        if (pbr.nameColumn == -1) {
          Cursor c=mContext.getContentResolver().query(Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,number),new String[]{PhoneLookup.DISPLAY_NAME,PhoneLookup.TYPE},null,null,null);
          if (c != null) {
            if (c.moveToFirst()) {
              name=c.getString(0);
              type=c.getInt(1);
            }
            c.close();
          }
          if (DBG && name == null)           log("String_Node_Str" + number);
        }
 else {
          name=pbr.cursor.getString(pbr.nameColumn);
        }
        if (name == null)         name="String_Node_Str";
        name=name.trim();
        if (name.length() > 28)         name=name.substring(0,28);
        if (pbr.typeColumn != -1) {
          type=pbr.cursor.getInt(pbr.typeColumn);
          name=name + "String_Node_Str" + getPhoneType(type);
        }
        int regionType=PhoneNumberUtils.toaFromString(number);
        number=number.trim();
        number=PhoneNumberUtils.stripSeparators(number);
        if (number.length() > 30)         number=number.substring(0,30);
        if (number.equals("String_Node_Str")) {
          number="String_Node_Str";
          name="String_Node_Str";
        }
        result.addResponse("String_Node_Str" + index + "String_Node_Str"+ number+ "String_Node_Str"+ regionType+ "String_Node_Str"+ name+ "String_Node_Str");
        if (!pbr.cursor.moveToNext()) {
          break;
        }
      }
      return result;
    }
    @Override public AtCommandResult handleTestCommand(){
      int size;
      if ("String_Node_Str".equals(mCurrentPhonebook)) {
        size=0;
      }
 else {
        PhonebookResult pbr=getPhonebookResult(mCurrentPhonebook,false);
        if (pbr == null) {
          return mHandsfree.reportCmeError(BluetoothCmeError.OPERATION_NOT_ALLOWED);
        }
        size=pbr.cursor.getCount();
      }
      if (size == 0) {
        size=1;
      }
      return new AtCommandResult("String_Node_Str" + size + "String_Node_Str");
    }
  }
);
}