diff --git a/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/async/ExecutorBeanPostProcessorTests.java b/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/async/ExecutorBeanPostProcessorTests.java
index 454d8a94e..a5ba16000 100644
--- a/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/async/ExecutorBeanPostProcessorTests.java
+++ b/spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/async/ExecutorBeanPostProcessorTests.java
@@ -176,4 +176,28 @@ public class ExecutorBeanPostProcessorTests {
 		}
 	}
 
+	@Test
+	public void should_throw_real_exception_when_using_proxy() throws Exception {
+		// for LazyTraceExecutor
+		Mockito.when(this.beanFactory.getBean(Tracing.class))
+			.thenReturn(Tracing.newBuilder().build());
+		Mockito.when(this.beanFactory.getBean(SpanNamer.class))
+			.thenReturn(new DefaultSpanNamer());
+
+		Object o = new ExecutorBeanPostProcessor(this.beanFactory)
+			.postProcessAfterInitialization(new RejectedExecutionExecutor(), "fooExecutor");
+
+		then(o).isInstanceOf(RejectedExecutionExecutor.class);
+		then(ClassUtils.isCglibProxy(o)).isTrue();
+		thenThrownBy(() -> ((RejectedExecutionExecutor) o).execute(() -> {}))
+			.isInstanceOf(RejectedExecutionException.class)
+			.hasMessage("rejected");
+	}
+
+	class RejectedExecutionExecutor implements Executor {
+		@Override public void execute(Runnable task) {
+			throw new RejectedExecutionException("rejected");
+		}
+	}
+
 }
\ No newline at end of file