Polish SqlParameter.sqlTypesToAnonymousParameterList()

Closes gh-1657

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

@@ -185,16 +185,13 @@ public class SqlParameter {
 	 * to a List of SqlParameter objects as used in this package.
 	 */
 	public static List<SqlParameter> sqlTypesToAnonymousParameterList(@Nullable int... types) {
-		List<SqlParameter> result;
+		if (types == null) {
-		if (types != null) {
+			return new LinkedList<>();
-			result = new ArrayList<>(types.length);
+		}
+		List<SqlParameter> result = new ArrayList<>(types.length);
 		for (int type : types) {
 			result.add(new SqlParameter(type));
 		}
-		}
-		else {
-			result = new LinkedList<>();
-		}
 		return result;
 	}