Polish

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

@@ -716,7 +716,7 @@ public class JdbcTemplate extends JdbcAccessor implements JdbcOperations {
 		Assert.notNull(rse, "ResultSetExtractor must not be null");
 		logger.debug("Executing prepared SQL query");
 
-		return execute(psc, new PreparedStatementCallback<T>() {
+		return execute(psc, new PreparedStatementCallback<>() {
 			@Override
 			@Nullable
 			public T doInPreparedStatement(PreparedStatement ps) throws SQLException {