in flink-connector-kudu/src/main/java/org/apache/flink/connector/kudu/connector/writer/KuduWriter.java [152:158]
private void checkErrors(OperationResponse response) throws IOException {
if (response != null && response.hasRowError()) {
failureHandler.onFailure(Collections.singletonList(response.getRowError()));
} else {
checkAsyncErrors();
}
}