Polish "Add support for multidimensional arrays"

See gh-34183

spring-beans/src/main/java/org/springframework/beans/AbstractNestablePropertyAccessor.java

@@ -933,9 +933,8 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 	 * @param arrayType the desired type of the target array
 	 * @return a new array instance
 	 */
-	private Object createArray(Class<?> arrayType) {
+	private static Object createArray(Class<?> arrayType) {
 		Assert.notNull(arrayType, "Array type must not be null");
-		if (arrayType.isArray()) {
 		Class<?> componentType = arrayType.componentType();
 		if (componentType.isArray()) {
 			Object array = Array.newInstance(componentType, 1);
@@ -946,10 +945,6 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 			return Array.newInstance(componentType, 0);
 		}
 	}
-		else {
-			throw new IllegalArgumentException("Unsupported Array type: " + arrayType.getName());
-		}
-	}
 
 	/**
 	 * Parse the given property name into the corresponding property name tokens.

spring-beans/src/test/java/org/springframework/beans/BeanWrapperAutoGrowingTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.