String maxOutflowRate1 = relayLinkReport.getMaxOutflowRate(); if (ObjectUtil.isEmpty(maxInflowRate1)) { maxOutflowRate1 = "0.0"; } BigDecimal maxOutflowRate = new BigDecimal(maxOutflowRate1).add(new BigDecimal(setRelayLinkValue(object.getMaxOutflowRate()))); 这些代码报空指针咋回事

根据你提供的代码，可能是`relayLinkReport`或`object`中的`getMaxOutflowRate()`方法返回了`null`，导致在调用`isEmpty()`方法时出现了`NullPointerException`异常。你可以在调用`getMaxOutflowRate()`方法之前，先做一个非空判断，例如： ``` String maxOutflowRate1 = relayLinkReport.getMaxOutflowRate(); if (maxOutflowRate1 == null) { maxOutflowRate1 = "0.0"; } BigDecimal maxOutflowRate = new BigDecimal(maxOutflowRate1).add(new BigDecimal(setRelayLinkValue(object.getMaxOutflowRate()))); ``` 或者你也可以在方法中添加一个断言，检查`relayLinkReport`和`object`是否为空： ``` assert relayLinkReport != null && object != null; String maxOutflowRate1 = relayLinkReport.getMaxOutflowRate(); if (ObjectUtil.isEmpty(maxInflowRate1)) { maxOutflowRate1 = "0.0"; } BigDecimal maxOutflowRate = new BigDecimal(maxOutflowRate1).add(new BigDecimal(setRelayLinkValue(object.getMaxOutflowRate()))); ``` 这样，如果`relayLinkReport`或`object`为空，就会抛出`AssertionError`，帮助你更快地定位问题。