From: Kai Moritz <kai@juplo.de>
Date: Sat, 11 Feb 2023 13:27:15 +0000 (+0100)
Subject: counter: Fixed a `ConcurentModificationException`-bug
X-Git-Tag: counter-tests-instances~5
X-Git-Url: http://juplo.de/gitweb/?a=commitdiff_plain;h=145d5414195ca3f536deed73975a6af80bfe99ba;p=demos%2Fkafka%2Fwordcount

counter: Fixed a `ConcurentModificationException`-bug
---

diff --git a/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java b/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java
index b314726..a345935 100644
--- a/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java
+++ b/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java
@@ -65,7 +65,7 @@ public class CounterApplicationIT
 
 		await("Expexted converted data")
 				.atMost(Duration.ofSeconds(10))
-				.untilAsserted(() -> TestData.assertExpectedResult(consumer.received));
+				.untilAsserted(() -> TestData.assertExpectedResult(consumer.getReceivedMessages()));
 	}
 
 
@@ -76,12 +76,17 @@ public class CounterApplicationIT
 		private final ObjectMapper mapper;
 
 		@KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
-		public void receive(ConsumerRecord<String, String> record) throws JsonProcessingException
+		public synchronized void receive(ConsumerRecord<String, String> record) throws JsonProcessingException
 		{
 			log.debug("Received message: {}", record);
 			Key key = mapper.readValue(record.key(), Key.class);
 			received.add(Message.of(key,record.value()));
 		}
+
+		synchronized List<Message> getReceivedMessages()
+		{
+			return received;
+		}
 	}
 
 	@TestConfiguration