in flink-vvp-connector-adbpg/src/main/java/org/apache/flink/connector/jdbc/table/utils/YaStringUtils.java [140:149]
public static String coalesce(String... candidates) {
if (null != candidates && candidates.length > 0) {
for (String c : candidates) {
if (!org.apache.commons.lang3.StringUtils.isBlank(c)) {
return c;
}
}
}
return null;
}