Ensure all files end with a new line

Update all files to ensure that they always end with a new-line
character.

Issue gh-8945

itest/context/src/integration-test/java/org/springframework/security/integration/StubUserRepository.java

@@ -21,4 +21,4 @@ public class StubUserRepository implements UserRepository {
 	public void doSomething() {
 	}
 
-}
+}