diff --git a/openvidu-server/src/main/java/io/openvidu/server/recording/RecorderEndpointWrapper.java b/openvidu-server/src/main/java/io/openvidu/server/recording/RecorderEndpointWrapper.java
index 52bcd754..c0f08f1d 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/recording/RecorderEndpointWrapper.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/recording/RecorderEndpointWrapper.java
@@ -23,7 +23,6 @@ import org.kurento.client.RecorderEndpoint;
 import com.google.gson.JsonObject;
 
 import io.openvidu.server.kurento.core.KurentoParticipant;
-import io.openvidu.server.recording.service.RecordingService;
 
 public class RecorderEndpointWrapper {
 
diff --git a/openvidu-server/src/main/java/io/openvidu/server/rest/SessionRestController.java b/openvidu-server/src/main/java/io/openvidu/server/rest/SessionRestController.java
index ca4e4a23..6e9e9889 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/rest/SessionRestController.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/rest/SessionRestController.java
@@ -65,7 +65,6 @@ import io.openvidu.java.client.VideoCodec;
 import io.openvidu.server.config.OpenviduConfig;
 import io.openvidu.server.core.EndReason;
 import io.openvidu.server.core.IdentifierPrefixes;
-import io.openvidu.server.core.MediaServer;
 import io.openvidu.server.core.Participant;
 import io.openvidu.server.core.Session;
 import io.openvidu.server.core.SessionManager;
diff --git a/openvidu-server/src/main/java/io/openvidu/server/utils/LocalDockerManager.java b/openvidu-server/src/main/java/io/openvidu/server/utils/LocalDockerManager.java
index d89767b1..8975a2e2 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/utils/LocalDockerManager.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/utils/LocalDockerManager.java
@@ -31,12 +31,14 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.github.dockerjava.api.DockerClient;
+import com.github.dockerjava.api.async.ResultCallback;
 import com.github.dockerjava.api.command.CreateContainerCmd;
 import com.github.dockerjava.api.command.CreateContainerResponse;
 import com.github.dockerjava.api.command.ExecCreateCmdResponse;
 import com.github.dockerjava.api.command.InspectContainerResponse;
 import com.github.dockerjava.api.command.InspectContainerResponse.Mount;
 import com.github.dockerjava.api.command.InspectImageResponse;
+import com.github.dockerjava.api.command.PullImageResultCallback;
 import com.github.dockerjava.api.exception.ConflictException;
 import com.github.dockerjava.api.exception.DockerClientException;
 import com.github.dockerjava.api.exception.InternalServerErrorException;
@@ -49,8 +51,6 @@ import com.github.dockerjava.api.model.Volume;
 import com.github.dockerjava.core.DefaultDockerClientConfig;
 import com.github.dockerjava.core.DockerClientBuilder;
 import com.github.dockerjava.core.DockerClientConfig;
-import com.github.dockerjava.core.command.ExecStartResultCallback;
-import com.github.dockerjava.core.command.PullImageResultCallback;
 import com.google.common.collect.ImmutableList;
 
 import io.openvidu.client.OpenViduException;
@@ -199,7 +199,7 @@ public class LocalDockerManager implements DockerManager {
 		ExecCreateCmdResponse execCreateCmdResponse = dockerClient.execCreateCmd(containerId).withAttachStdout(true)
 				.withAttachStderr(true).withCmd("bash", "-c", command).exec();
 		CountDownLatch latch = new CountDownLatch(1);
-		dockerClient.execStartCmd(execCreateCmdResponse.getId()).exec(new ExecStartResultCallback() {
+		dockerClient.execStartCmd(execCreateCmdResponse.getId()).exec(new ResultCallback.Adapter<>() {
 			@Override
 			public void onComplete() {
 				latch.countDown();
@@ -217,7 +217,7 @@ public class LocalDockerManager implements DockerManager {
 	public void runCommandInContainerAsync(String mediaNodeId, String containerId, String command) throws IOException {
 		ExecCreateCmdResponse execCreateCmdResponse = dockerClient.execCreateCmd(containerId).withAttachStdout(true)
 				.withAttachStderr(true).withCmd("bash", "-c", command).exec();
-		dockerClient.execStartCmd(execCreateCmdResponse.getId()).exec(new ExecStartResultCallback() {
+		dockerClient.execStartCmd(execCreateCmdResponse.getId()).exec(new ResultCallback.Adapter<>() {
 		});
 	}