[jira] [Created] (ZOOKEEPER-4380) Avoid NPE in RateLogger#rateLimitLog

["Wenjun Ruan (Jira)" <ji...@apache.org>]

Wenjun Ruan created ZOOKEEPER-4380:
--------------------------------------

             Summary: Avoid NPE in RateLogger#rateLimitLog
                 Key: ZOOKEEPER-4380
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4380
             Project: ZooKeeper
          Issue Type: Improvement
            Reporter: Wenjun Ruan


The newMsg may cause NPE
{code:java}
/**
 * In addition to the message, it also takes a value.
 */
public void rateLimitLog(String newMsg, String value) {
    long now = Time.currentElapsedTime();
    if (newMsg.equals(msg)) {
        ++count;
        this.value = value;
        if (now - timestamp >= LOG_INTERVAL) {
            flush();
            msg = newMsg;
            timestamp = now;
            this.value = value;
        }
    } else {
        flush();
        msg = newMsg;
        this.value = value;
        timestamp = now;
        LOG.warn("Message:{} Value:{}", msg, value);
    }
}
{code}



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