[Demonstration 1]

[Buggy Method]
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
    FAQBean mFaqBean = (FAQBean) getGroup(groupPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.list_faq_childe_item, null);
    }
    TextView item = (TextView) convertView.findViewById(R.id.faqsubcontentTextView);
    item.setText(mFaqBean.getContent().toString());
    return convertView;
}

[Buggy Hunk]
convertView = infalInflater.inflate(R.layout.list_faq_childe_item, null);

[Patch]
convertView = infalInflater.inflate(R.layout.list_faq_child_item, null);

[Demonstration 2]

[Buggy Method]
@Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
    String headerTitle = context.getResources().getString(R.string.serialNumber) + getGroup(groupPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.list_group, null);
    }
    final TextView GroupText = (TextView) convertView.findViewById(R.id.groupText);
    Button Deltebtn = (Button) convertView.findViewById(R.id.DeleteBtn);
    Deltebtn.setFocusable(false);
    final int position = groupPosition;
    Deltebtn.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            removeOrder(position);
            noticeChanged();
        }
    });
    GroupText.setTypeface(null, Typeface.BOLD);
    GroupText.setText(headerTitle);
    return convertView;
}

[Buggy Hunk]
String headerTitle = context.getResources().getString(R.string.serialNumber) + getGroup(groupPosition) ;

[Patch]
String headerTitle = StringResources.Text.SerialNumber + getGroup(groupPosition) ;

[Demonstration 3]

[Buggy Method]
public void dateChangeDialog(View view) {
    final Dialog dialog = new Dialog(GetAvailableRoomsByTimeActivity.this);
    dialog.setContentView(R.layout.dialog_date_picker);
    mDialogDatePicker = (DatePicker) dialog.findViewById(R.id.dialog_date_date_picker);
    mDateConfirmButton = (Button) dialog.findViewById(R.id.dialog_confirm_date);
    mDialogDatePicker.setCalendarViewShown(false);
    dialog.show();
    mDateConfirmButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern("dd/MM/yy");
            DateTime dateTime = new DateTime(mDialogDatePicker.getYear(), mDialogDatePicker.getMonth(), mDialogDatePicker.getDayOfMonth(), 0, 0);
            String date = dateTimeFormatter.print(dateTime);
            mDateTextView.setText(date);
            dialog.dismiss();
        }
    });
}

[Buggy Hunk]
DateTime dateTime = new DateTime(mDialogDatePicker.getYear(), mDialogDatePicker.getMonth(), mDialogDatePicker.getDayOfMonth()

[Patch]
DateTime dateTime = new DateTime(mDialogDatePicker.getYear(), (mDialogDatePicker.getMonth() + 1 ), mDialogDatePicker.getDayOfMonth()