add follow change bond

Helius

2021-04-06 48e20b2b0f03c52a904271b177678f9f8818754d

 src/main/java/com/xcong/excoin/modules/contract/parameter/vo/ContractEntrustVo.java

@@ -36,6 +36,6 @@
    private int type;

    public String getBondAmount() {
        return bondAmount.setScale(4, BigDecimal.ROUND_DOWN).toPlainString();
        return bondAmount == null ? "" : bondAmount.setScale(4, BigDecimal.ROUND_DOWN).toPlainString();
    }
}