KAFKA-5980: FailOnInvalidTimestamp does not log error

Author: Matthias J. Sax <matthias@confluent.io>

Reviewers: Damian Guy <damian.guy@gmail.com>, Ted Yu <yuzhihong@gmail.com>, Denis Bolshakov

Closes #3966 from mjsax/kafka-5980-FailOnInvalidTimestamp-does-not-log-error

streams/src/main/java/org/apache/kafka/streams/processor/FailOnInvalidTimestamp.java

@@ -19,6 +19,8 @@ package org.apache.kafka.streams.processor;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 import org.apache.kafka.common.annotation.InterfaceStability;
 import org.apache.kafka.streams.errors.StreamsException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Retrieves embedded metadata timestamps from Kafka messages.
@@ -45,6 +47,7 @@ import org.apache.kafka.streams.errors.StreamsException;
  */
 @InterfaceStability.Evolving
 public class FailOnInvalidTimestamp extends ExtractRecordMetadataTimestamp {
+    private static final Logger log = LoggerFactory.getLogger(FailOnInvalidTimestamp.class);
 
     /**
      * Raises an exception on every call.
@@ -60,10 +63,14 @@ public class FailOnInvalidTimestamp extends ExtractRecordMetadataTimestamp {
                                    final long recordTimestamp,
                                    final long previousTimestamp)
             throws StreamsException {
-        throw new StreamsException("Input record " + record + " has invalid (negative) timestamp. " +
+
-            "Possibly because a pre-0.10 producer client was used to write this record to Kafka without embedding a timestamp, " +
+        final String message = "Input record " + record + " has invalid (negative) timestamp. " +
-            "or because the input topic was created before upgrading the Kafka cluster to 0.10+. " +
+            "Possibly because a pre-0.10 producer client was used to write this record to Kafka without embedding " +
-            "Use a different TimestampExtractor to process this data.");
+            "a timestamp, or because the input topic was created before upgrading the Kafka cluster to 0.10+. " +
+            "Use a different TimestampExtractor to process this data.";
+
+        log.error(message);
+        throw new StreamsException(message);
     }
 
 }