+ update copyright dates on some files

+ migrated test from JUnit 3 to 4

org.springframework.beans/src/main/java/org/springframework/beans/factory/support/SecurityContextProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2009 the original author or authors.
+ * Copyright 2002-2009 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.beans.factory.support;
 
 import java.security.AccessControlContext;

org.springframework.beans/src/main/java/org/springframework/beans/factory/support/SimpleSecurityContextProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2009 the original author or authors.
+ * Copyright 2002-2009 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.beans.factory.support;
 
 import java.security.AccessControlContext;