diff --git a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java
index eafdf830d..ae9f6bfd7 100644
--- a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java
+++ b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java
@@ -36,14 +36,10 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import net.jradius.dictionary.Attr_State;
 import net.jradius.dictionary.Attr_ReplyMessage;
-import net.jradius.exception.UnknownAttributeException;
 import net.jradius.packet.RadiusPacket;
 import net.jradius.packet.AccessAccept;
 import net.jradius.packet.AccessChallenge;
 import net.jradius.packet.AccessReject;
-import net.jradius.packet.AccessRequest;
-import net.jradius.packet.AccessResponse;
-import net.jradius.packet.attribute.AttributeList;
 import net.jradius.packet.attribute.RadiusAttribute;
 
 /**
@@ -63,12 +59,6 @@ public class AuthenticationProviderService {
     @Inject
     private RadiusConnectionService radiusService;
 
-    /**
-     * Service for retrieving RADIUS server configuration information.
-     */
-    @Inject
-    private ConfigurationService confService;
-
     /**
      * Provider for AuthenticatedUser objects.
      */
diff --git a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/ConfigurationService.java b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/ConfigurationService.java
index 0cfe26b0e..73241ea28 100644
--- a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/ConfigurationService.java
+++ b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/ConfigurationService.java
@@ -20,8 +20,6 @@
 package org.apache.guacamole.auth.radius;
 
 import com.google.inject.Inject;
-import java.util.Collections;
-import java.util.List;
 import org.apache.guacamole.GuacamoleException;
 import org.apache.guacamole.environment.Environment;
 
diff --git a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/RadiusConnectionService.java b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/RadiusConnectionService.java
index 345a03d11..52e735ef6 100644
--- a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/RadiusConnectionService.java
+++ b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/RadiusConnectionService.java
@@ -22,22 +22,23 @@ package org.apache.guacamole.auth.radius;
 import com.google.inject.Inject;
 import java.io.File;
 import java.io.IOException;
-import java.io.UnsupportedEncodingException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.security.NoSuchAlgorithmException;
 import org.apache.guacamole.GuacamoleException;
-import org.apache.guacamole.GuacamoleUnsupportedException;
 import org.apache.guacamole.environment.LocalEnvironment;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import net.jradius.client.RadiusClient;
+import net.jradius.dictionary.Attr_CleartextPassword;
+import net.jradius.dictionary.Attr_ReplyMessage;
+import net.jradius.dictionary.Attr_State;
+import net.jradius.dictionary.Attr_UserName;
+import net.jradius.dictionary.Attr_UserPassword;
 import net.jradius.exception.RadiusException;
 import net.jradius.packet.RadiusPacket;
 import net.jradius.packet.AccessRequest;
-import net.jradius.dictionary.*;
 import net.jradius.packet.attribute.AttributeList;
-import net.jradius.packet.attribute.RadiusAttribute;
 import net.jradius.client.auth.EAPTLSAuthenticator;
 import net.jradius.client.auth.EAPTTLSAuthenticator;
 import net.jradius.client.auth.RadiusAuthenticator;
diff --git a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/form/RadiusStateField.java b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/form/RadiusStateField.java
index 51d57fece..c7c06c492 100644
--- a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/form/RadiusStateField.java
+++ b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/form/RadiusStateField.java
@@ -20,9 +20,6 @@
 package org.apache.guacamole.auth.radius.form;
 
 import org.apache.guacamole.form.Field;
-import org.codehaus.jackson.annotate.JsonProperty;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * The invisible field that stores the state of the RADIUS