public Set<String> keySet() {
        synchronized (this.confData) {
            return new HashSet<>(this.confData.keySet());
        }
    }
Returns the keys of all key/value pairs stored inside this configuration object.

@return the keys of all key/value pairs stored inside this configuration object
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/configuration/Configuration.java