diff --git a/spring-context/src/main/java/org/springframework/instrument/classloading/websphere/WebSphereClassPreDefinePlugin.java b/spring-context/src/main/java/org/springframework/instrument/classloading/websphere/WebSphereClassPreDefinePlugin.java
index bae315299d..c2d96a6ab9 100644
--- a/spring-context/src/main/java/org/springframework/instrument/classloading/websphere/WebSphereClassPreDefinePlugin.java
+++ b/spring-context/src/main/java/org/springframework/instrument/classloading/websphere/WebSphereClassPreDefinePlugin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -61,21 +61,17 @@ class WebSphereClassPreDefinePlugin implements InvocationHandler {
 
 	@Override
 	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
-		String name = method.getName();
-		if ("equals".equals(name)) {
-			return (proxy == args[0]);
-		}
-		else if ("hashCode".equals(name)) {
-			return hashCode();
-		}
-		else if ("toString".equals(name)) {
-			return toString();
-		}
-		else if ("transformClass".equals(name)) {
-			return transform((String) args[0], (byte[]) args[1], (CodeSource) args[2], (ClassLoader) args[3]);
-		}
-		else {
-			throw new IllegalArgumentException("Unknown method: " + method);
+		switch (method.getName()) {
+			case "equals":
+				return (proxy == args[0]);
+			case "hashCode":
+				return hashCode();
+			case "toString":
+				return toString();
+			case "transformClass":
+				return transform((String) args[0], (byte[]) args[1], (CodeSource) args[2], (ClassLoader) args[3]);
+			default:
+				throw new IllegalArgumentException("Unknown method: " + method);
 		}
 	}