HADOOP-19437. Upgrade JUnit from 4 to 5 in hadoop-kafka. (#7547)

hadoop-tools/hadoop-kafka/pom.xml

@@ -119,5 +119,31 @@
       <artifactId>assertj-core</artifactId>
       <scope>test</scope>
     </dependency>
+
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.platform</groupId>
+      <artifactId>junit-platform-launcher</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.vintage</groupId>
+      <artifactId>junit-vintage-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 </project>

hadoop-tools/hadoop-kafka/src/test/java/org/apache/hadoop/metrics2/impl/TestKafkaMetrics.java

@@ -31,7 +31,7 @@ import org.apache.kafka.clients.producer.KafkaProducer;
 import org.apache.kafka.clients.producer.Producer;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.clients.producer.RecordMetadata;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentCaptor;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;