diff --git a/core-java/src/test/java/com/baeldung/concurrent/locks/SharedObjectWithLockManualTest.java b/core-java/src/test/java/com/baeldung/concurrent/locks/SharedObjectWithLockManualTest.java
index 9b82ced642..4dccbc3e26 100644
--- a/core-java/src/test/java/com/baeldung/concurrent/locks/SharedObjectWithLockManualTest.java
+++ b/core-java/src/test/java/com/baeldung/concurrent/locks/SharedObjectWithLockManualTest.java
@@ -66,9 +66,7 @@ public class SharedObjectWithLockManualTest {
 
 	private void executeThreads(SharedObjectWithLock object, int threadCount, ExecutorService service) {
 		for (int i = 0; i < threadCount; i++) {
-			service.execute(() -> {
-				object.perform();
-			});
+			service.execute(object::perform);
 		}
 	}