MINOR: Fix failing test due to KAFKA-10556 PR (apache#9372)

Reviewers: Chia-Ping Tsai <[email protected]>, Rajini Sivaram <[email protected]>

core/src/test/scala/integration/kafka/api/MetricsTest.scala

@@ -26,6 +26,7 @@ import org.apache.kafka.common.config.SaslConfigs
 import org.apache.kafka.common.errors.InvalidTopicException
 import org.apache.kafka.common.network.ListenerName
 import org.apache.kafka.common.security.auth.SecurityProtocol
+import org.apache.kafka.common.security.authenticator.TestJaasConfig
 import org.junit.{After, Before, Test}
 import org.junit.Assert._
 import org.scalatest.Assertions.fail
@@ -113,8 +114,8 @@ class MetricsTest extends IntegrationTestHarness with SaslSetup {
   // Create a producer that fails authentication to verify authentication failure metrics
   private def generateAuthenticationFailure(tp: TopicPartition): Unit = {
     val saslProps = new Properties()
-     // Temporary limit to reduce blocking before KIP-152 client-side changes are merged
-    saslProps.put(SaslConfigs.SASL_MECHANISM, "SCRAM-SHA-256")
+    saslProps.put(SaslConfigs.SASL_MECHANISM, kafkaClientSaslMechanism)
+    saslProps.put(SaslConfigs.SASL_JAAS_CONFIG, TestJaasConfig.jaasConfigProperty(kafkaClientSaslMechanism, "badUser", "badPass"))
     // Use acks=0 to verify error metric when connection is closed without a response
     val producer = TestUtils.createProducer(brokerList,
       acks = 0,