BeanDefinitionVisitor/PropertyPlaceholderConfigurer finds and resolves values in arrays as well (SPR-7136)

org.springframework.beans/src/main/java/org/springframework/beans/factory/config/BeanDefinitionVisitor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2010 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.
@@ -183,6 +183,9 @@ public class BeanDefinitionVisitor {
 				return new RuntimeBeanNameReference(newBeanName);
 			}
 		}
+		else if (value instanceof Object[]) {
+			visitArray((Object[]) value);
+		}
 		else if (value instanceof List) {
 			visitList((List) value);
 		}
@@ -206,6 +209,17 @@ public class BeanDefinitionVisitor {
 		return value;
 	}
 
+	@SuppressWarnings("unchecked")
+	protected void visitArray(Object[] arrayVal) {
+		for (int i = 0; i < arrayVal.length; i++) {
+			Object elem = arrayVal[i];
+			Object newVal = resolveValue(elem);
+			if (!ObjectUtils.nullSafeEquals(newVal, elem)) {
+				arrayVal[i] = newVal;
+			}
+		}
+	}
+
 	@SuppressWarnings("unchecked")
 	protected void visitList(List listVal) {
 		for (int i = 0; i < listVal.size(); i++) {

org.springframework.beans/src/test/java/org/springframework/beans/factory/config/PropertyResourceConfigurerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2010 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.
@@ -376,6 +376,9 @@ public final class PropertyResourceConfigurerTests {
 		cas.addGenericArgumentValue("${var}name${age}");
 
 		MutablePropertyValues pvs = new MutablePropertyValues();
+
+		pvs.add("stringArray", new String[] {"${os.name}", "${age}"});
+
 		List<Object> friends = new ManagedList<Object>();
 		friends.add("na${age}me");
 		friends.add(new RuntimeBeanReference("${ref}"));
@@ -422,6 +425,9 @@ public final class PropertyResourceConfigurerTests {
 		assertEquals(tb2, tb1.getSpouse());
 		assertEquals(1, tb1.getSomeMap().size());
 		assertEquals("myValue", tb1.getSomeMap().get("myKey"));
+		assertEquals(2, tb2.getStringArray().length);
+		assertEquals(System.getProperty("os.name"), tb2.getStringArray()[0]);
+		assertEquals("98", tb2.getStringArray()[1]);
 		assertEquals(2, tb2.getFriends().size());
 		assertEquals("na98me", tb2.getFriends().iterator().next());
 		assertEquals(tb2, tb2.getFriends().toArray()[1]);