From 9e49f327fafc4145dda9e7d3c6b020c9d5974d93 Mon Sep 17 00:00:00 2001
From: claude <claude@siegeln.net>
Date: Sat, 4 Apr 2026 15:40:12 +0200
Subject: [PATCH] feat: upgrade build image from Temurin 17 to 21

cameleer-saas requires Java 21. The 21 JDK is backwards compatible
with Java 17 projects (cameleer3, cameleer3-server).
---
 build/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/Dockerfile b/build/Dockerfile
index d18ab6f..a29e0e3 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM maven:3.9-eclipse-temurin-17
+FROM maven:3.9-eclipse-temurin-21
 
 # Node.js 22 LTS via NodeSource
 RUN apt-get update && apt-get install -y ca-certificates curl gnupg \