Clean up warnings across code base

spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -1451,7 +1451,6 @@ public class JdbcTemplate extends JdbcAccessor implements JdbcOperations {
 		}
 
 		@Override
-		@SuppressWarnings("rawtypes")
 		public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
 			// Invocation on ConnectionProxy interface coming in...