diff --git a/core/src/test/scala/unit/kafka/network/SocketServerTest.scala b/core/src/test/scala/unit/kafka/network/SocketServerTest.scala
index 7d3b42897cc..9f1d0fe8a1c 100644
--- a/core/src/test/scala/unit/kafka/network/SocketServerTest.scala
+++ b/core/src/test/scala/unit/kafka/network/SocketServerTest.scala
@@ -20,7 +20,7 @@ package kafka.network
 import java.io._
 import java.net._
 import java.nio.ByteBuffer
-import java.util.{HashMap, Properties, Random}
+import java.util.{HashMap, Random}
 import java.nio.channels.SocketChannel
 import javax.net.ssl._
 
diff --git a/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsOnPlainTextTest.scala b/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsOnPlainTextTest.scala
index 3d4be531985..6d56a023930 100644
--- a/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsOnPlainTextTest.scala
+++ b/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsOnPlainTextTest.scala
@@ -16,7 +16,6 @@
   */
 package kafka.server
 
-import java.nio.ByteBuffer
 import java.util
 
 import kafka.utils.TestUtils
diff --git a/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsWithDisableTokenFeatureTest.scala b/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsWithDisableTokenFeatureTest.scala
index 8f8842bbe97..1203f839f89 100644
--- a/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsWithDisableTokenFeatureTest.scala
+++ b/core/src/test/scala/unit/kafka/server/DelegationTokenRequestsWithDisableTokenFeatureTest.scala
@@ -16,7 +16,6 @@
   */
 package kafka.server
 
-import java.nio.ByteBuffer
 import java.util
 
 import kafka.api.{KafkaSasl, SaslSetup}