diff --git a/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionAspectSupport.java b/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionAspectSupport.java
index 3d0840d0b77..3a1ed7959e3 100644
--- a/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionAspectSupport.java
+++ b/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionAspectSupport.java
@@ -21,7 +21,6 @@ import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Executor;
 
-import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.BeanFactoryAware;
 import org.springframework.beans.factory.annotation.BeanFactoryAnnotationUtils;
diff --git a/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionInterceptor.java b/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionInterceptor.java
index bcd59da6f9d..569f8f8cfc9 100644
--- a/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionInterceptor.java
+++ b/spring-aop/src/main/java/org/springframework/aop/interceptor/AsyncExecutionInterceptor.java
@@ -63,7 +63,7 @@ public class AsyncExecutionInterceptor extends AsyncExecutionAspectSupport
 	/**
 	 * Create a new {@code AsyncExecutionInterceptor}.
 	 * @param defaultExecutor the {@link Executor} (typically a Spring {@link AsyncTaskExecutor}
-	 * or {@link java.util.concurrent.ExecutorService}) to delegate to.
+	 * or {@link java.util.concurrent.ExecutorService}) to delegate to
 	 */
 	public AsyncExecutionInterceptor(Executor defaultExecutor) {
 		super(defaultExecutor);
diff --git a/spring-core/src/main/java/org/springframework/cglib/transform/impl/MemorySafeUndeclaredThrowableStrategy.java b/spring-core/src/main/java/org/springframework/cglib/transform/impl/MemorySafeUndeclaredThrowableStrategy.java
index 6f20e3b9d26..decc7640017 100644
--- a/spring-core/src/main/java/org/springframework/cglib/transform/impl/MemorySafeUndeclaredThrowableStrategy.java
+++ b/spring-core/src/main/java/org/springframework/cglib/transform/impl/MemorySafeUndeclaredThrowableStrategy.java
@@ -43,7 +43,7 @@ public class MemorySafeUndeclaredThrowableStrategy extends DefaultGeneratorStrat
 	};
 
 
-	private Class<?> wrapper;
+	private final Class<?> wrapper;
 
 
 	public MemorySafeUndeclaredThrowableStrategy(Class<?> wrapper) {
@@ -52,9 +52,9 @@ public class MemorySafeUndeclaredThrowableStrategy extends DefaultGeneratorStrat
 
 
 	protected ClassGenerator transform(ClassGenerator cg) throws Exception {
-		ClassTransformer tr = new UndeclaredThrowableTransformer(wrapper);
-		tr = new MethodFilterTransformer(TRANSFORM_FILTER, tr);
-		return new TransformingClassGenerator(cg, tr);
+		ClassTransformer ct = new UndeclaredThrowableTransformer(this.wrapper);
+		ct = new MethodFilterTransformer(TRANSFORM_FILTER, ct);
+		return new TransformingClassGenerator(cg, ct);
 	}
 
 }