Consistent whitespace after imports

Update code to have a consistent number of new-line characters after
import statements.

spring-orm/src/test/java/org/springframework/orm/hibernate3/support/OpenSessionInViewTests.java

@@ -53,7 +53,6 @@ import org.springframework.web.util.NestedServletException;
 import static org.junit.Assert.*;
 import static org.mockito.BDDMockito.*;
 
-
 /**
  * @author Juergen Hoeller
  * @author Rossen Stoyanchev