diff --git a/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceThreadPoolTaskExecutor.java b/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceThreadPoolTaskExecutor.java
index 292a97702..721b839e9 100644
--- a/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceThreadPoolTaskExecutor.java
+++ b/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceThreadPoolTaskExecutor.java
@@ -32,7 +32,7 @@ import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
 import org.springframework.util.concurrent.ListenableFuture;
 
 /**
- * {@link ThreadPoolTaskExecutor} that delegates execution to {@link LazyTraceExecutor}
+ * {@link ThreadPoolTaskExecutor} that continues a span if one was passed or creates a new one
  *
  * @author Marcin Grzejszczak
  * @since 1.0.10
diff --git a/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceExecutorBeanPostProcessor.java b/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceExecutorBeanPostProcessor.java
index 060bf34e8..66f97a16b 100644
--- a/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceExecutorBeanPostProcessor.java
+++ b/spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceExecutorBeanPostProcessor.java
@@ -16,11 +16,8 @@
 
 package org.springframework.cloud.sleuth.instrument.async;
 
-import java.lang.invoke.MethodHandles;
 import java.util.concurrent.Executor;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.config.BeanPostProcessor;
@@ -35,8 +32,6 @@ import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
  */
 class TraceExecutorBeanPostProcessor implements BeanPostProcessor {
 
-	private static final Log log = LogFactory.getLog(MethodHandles.lookup().lookupClass());
-
 	private final BeanFactory beanFactory;
 
 	public TraceExecutorBeanPostProcessor(BeanFactory beanFactory) {