From 34168cbe884e5cda00185414742163815cd4ebf8 Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@datageekery.com>
Date: Thu, 13 Mar 2025 14:14:13 +0100
Subject: [PATCH] [jOOQ/jOOQ#18165] Wrong YearToMonth interval parsed when
 parsing ISO interval values with negative components

---
 jOOQ/src/main/java/org/jooq/types/YearToMonth.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/jOOQ/src/main/java/org/jooq/types/YearToMonth.java b/jOOQ/src/main/java/org/jooq/types/YearToMonth.java
index 52859d75c8..ffe196b60f 100644
--- a/jOOQ/src/main/java/org/jooq/types/YearToMonth.java
+++ b/jOOQ/src/main/java/org/jooq/types/YearToMonth.java
@@ -141,6 +141,13 @@ public final class YearToMonth extends Number implements Interval, Comparable<Ye
                 int years = group2 == null ? 0 : Integer.parseInt(group2);
                 int months = group3 == null ? 0 : Integer.parseInt(group3);
 
+                // [#18165] ISO intervals can be negative in 2 ways: -P1Y or P-1Y
+                if (years < 0) {
+                    negative = !negative;
+                    years = -years;
+                    months = -months;
+                }
+
                 return new YearToMonth(years, months, negative);
             }