diff --git a/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java b/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java
index 871f4c95c2..451654a7b2 100644
--- a/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java
+++ b/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java
@@ -46,7 +46,7 @@ public class LaunchedURLClassLoader extends URLClassLoader {
 	@Override
 	protected Class<?> loadClass(String name, boolean resolve)
 			throws ClassNotFoundException {
-		synchronized (getClassLoadingLock(name)) {
+		synchronized (this) {
 			Class<?> loadedClass = findLoadedClass(name);
 			if (loadedClass == null) {
 				loadedClass = doLoadClass(name);