diff --git a/server/src/main/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditService.java b/server/src/main/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditService.java
index 6a9bf049e4e..95e04e306ca 100644
--- a/server/src/main/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditService.java
+++ b/server/src/main/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditService.java
@@ -1,20 +1,8 @@
-/*******************************************************************************
- *     Cloud Foundry
- *     Copyright (c) [2009-2016] Pivotal Software, Inc. All Rights Reserved.
- *
- *     This product is licensed to you under the Apache License, Version 2.0 (the "License").
- *     You may not use this product except in compliance with the License.
- *
- *     This product includes a number of subcomponents with
- *     separate copyright notices and license terms. Your use of these
- *     subcomponents is subject to the terms and conditions of the
- *     subcomponent's license, as noted in the LICENSE file.
- *******************************************************************************/
 package org.cloudfoundry.identity.uaa.audit;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.cloudfoundry.identity.uaa.logging.LogSanitizerUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.jmx.export.annotation.ManagedMetric;
 import org.springframework.jmx.export.annotation.ManagedResource;
 import org.springframework.jmx.support.MetricType;
@@ -36,7 +24,7 @@
 )
 public class LoggingAuditService implements UaaAuditService {
 
-    private Log logger = LogFactory.getLog("UAA.Audit");
+    private Logger logger = LoggerFactory.getLogger("UAA.Audit");
 
     private AtomicInteger userAuthenticationCount = new AtomicInteger();
 
@@ -174,11 +162,11 @@ private void log(String msg) {
         }
     }
 
-    public void setLogger(Log logger) {
+    public void setLogger(Logger logger) {
         this.logger = logger;
     }
 
-    public Log getLogger() {
+    public Logger getLogger() {
         return logger;
     }
 }
diff --git a/server/src/test/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditServiceTest.java b/server/src/test/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditServiceTest.java
index c247f146557..5bca3f0c30d 100644
--- a/server/src/test/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditServiceTest.java
+++ b/server/src/test/java/org/cloudfoundry/identity/uaa/audit/LoggingAuditServiceTest.java
@@ -1,11 +1,11 @@
 package org.cloudfoundry.identity.uaa.audit;
 
 
-import org.apache.commons.logging.Log;
 import org.cloudfoundry.identity.uaa.logging.LogSanitizerUtil;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentCaptor;
+import org.slf4j.Logger;
 
 import static org.cloudfoundry.identity.uaa.audit.AuditEventType.PasswordChangeFailure;
 import static org.cloudfoundry.identity.uaa.audit.AuditEventType.UserAuthenticationSuccess;
@@ -17,12 +17,12 @@
 class LoggingAuditServiceTest {
 
     private LoggingAuditService loggingAuditService;
-    private Log mockLogger;
+    private Logger mockLogger;
 
     @BeforeEach
     void setup() {
         loggingAuditService = new LoggingAuditService();
-        mockLogger = mock(Log.class);
+        mockLogger = mock(Logger.class);
         loggingAuditService.setLogger(mockLogger);
     }
 
diff --git a/uaa/src/test/java/org/cloudfoundry/identity/uaa/mock/audit/AuditCheckMockMvcTests.java b/uaa/src/test/java/org/cloudfoundry/identity/uaa/mock/audit/AuditCheckMockMvcTests.java
index a96d811ae79..5b80529cb8e 100644
--- a/uaa/src/test/java/org/cloudfoundry/identity/uaa/mock/audit/AuditCheckMockMvcTests.java
+++ b/uaa/src/test/java/org/cloudfoundry/identity/uaa/mock/audit/AuditCheckMockMvcTests.java
@@ -3,10 +3,8 @@
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.google.common.collect.Sets;
 import org.apache.commons.codec.binary.Base64;
-import org.apache.commons.logging.Log;
 import org.apache.commons.logging.impl.NoOpLog;
 import org.cloudfoundry.identity.uaa.DefaultTestContext;
-import org.cloudfoundry.identity.uaa.SpringServletAndHoneycombTestConfig;
 import org.cloudfoundry.identity.uaa.account.LostPasswordChangeRequest;
 import org.cloudfoundry.identity.uaa.account.event.PasswordChangeEvent;
 import org.cloudfoundry.identity.uaa.account.event.PasswordChangeFailureEvent;
@@ -33,16 +31,19 @@
 import org.cloudfoundry.identity.uaa.scim.event.ScimEventPublisher;
 import org.cloudfoundry.identity.uaa.scim.event.UserModifiedEvent;
 import org.cloudfoundry.identity.uaa.scim.jdbc.JdbcScimUserProvisioning;
-import org.cloudfoundry.identity.uaa.security.PollutionPreventionExtension;
-import org.cloudfoundry.identity.uaa.test.*;
+import org.cloudfoundry.identity.uaa.test.TestApplicationEventListener;
+import org.cloudfoundry.identity.uaa.test.TestClient;
+import org.cloudfoundry.identity.uaa.test.UaaTestAccounts;
 import org.cloudfoundry.identity.uaa.util.JsonUtils;
 import org.cloudfoundry.identity.uaa.zone.ClientServicesExtension;
 import org.cloudfoundry.identity.uaa.zone.beans.IdentityZoneManager;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.ArgumentCaptor;
+import org.slf4j.Logger;
+import org.slf4j.helpers.NOPLogger;
+import org.slf4j.helpers.SubstituteLogger;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
@@ -60,10 +61,6 @@
 import org.springframework.security.oauth2.provider.ClientDetails;
 import org.springframework.security.oauth2.provider.client.BaseClientDetails;
 import org.springframework.security.web.FilterChainProxy;
-import org.springframework.test.context.ActiveProfiles;
-import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit.jupiter.SpringExtension;
-import org.springframework.test.context.web.WebAppConfiguration;
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.MvcResult;
 import org.springframework.test.web.servlet.ResultActions;
@@ -126,7 +123,7 @@ class AuditCheckMockMvcTests {
     @Autowired
     private LoggingAuditService loggingAuditService;
     private InterceptingLogger testLogger;
-    private Log originalAuditServiceLogger;
+    private Logger originalAuditServiceLogger;
 
     @Autowired
     JdbcScimUserProvisioning jdbcScimUserProvisioning;
@@ -1262,12 +1259,16 @@ private void assertGroupMembershipLogMessage(String actualLogMessage, AuditEvent
         assertThat(memberIdsFromLogMessage, equalTo(Sets.newHashSet(expectedUserIds)));
     }
 
-    private class InterceptingLogger extends NoOpLog {
+    private class InterceptingLogger extends SubstituteLogger {
         private List<String> messages = new ArrayList<>();
 
+        InterceptingLogger() {
+            super("InterceptingLogger", new LinkedList<>(), true);
+        }
+
         @Override
-        public void info(Object message) {
-            messages.add(message.toString());
+        public void info(String message) {
+            messages.add(message);
         }
 
         void reset() {