Github user ijokarumawak commented on the issue:
https://github.com/apache/nifi/pull/1306
@mcgilman I considered following code once, but it can not clear batchCount
to null, because batchCount is an Integer (not String):
```java
if (isNotNull(batchCount)) {
port.setBatchCount(batchCount);
}
```
Blank string can tell user want to clear string field, but numeric ones can
not:
```json
{"batchCount": null, "batchSize": ""}
```
and
```json
{"batchSize": ""}
```
are identical when those are converted into DTO layer. Is this
understanding wrong?
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