From 6ca3a25aacb179046100f6fc83e4def039883f8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Such=C3=A1nek?= <marek.suchanek@gmail.com>
Date: Sat, 14 Oct 2023 18:13:09 +0200
Subject: [PATCH] Update to Java 21

---
 .github/workflows/code-style.yml | 2 +-
 Dockerfile                       | 2 +-
 Dockerfile.build                 | 4 ++--
 README.md                        | 2 +-
 pom.xml                          | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index 9c25cab3c..a2de5586a 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -12,7 +12,7 @@ jobs:
 
     env:
       JAVA_DISTRIBUTION: temurin
-      JAVA_VERSION: 17
+      JAVA_VERSION: 21
 
     steps:
       - name: Checkout repository
diff --git a/Dockerfile b/Dockerfile
index 35dc95a17..86a03781f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,7 @@
 # THE SOFTWARE.
 #
 
-FROM eclipse-temurin:17-jdk-focal
+FROM eclipse-temurin:21-jdk-alpine
 
 WORKDIR /fdp
 
diff --git a/Dockerfile.build b/Dockerfile.build
index 946815189..f0a435ffe 100644
--- a/Dockerfile.build
+++ b/Dockerfile.build
@@ -22,7 +22,7 @@
 #
 ################################################################################
 # BUILD STAGE
-FROM maven:3-eclipse-temurin-17-focal as builder
+FROM maven:3-eclipse-temurin-21-alpine as builder
 
 WORKDIR /builder
 
@@ -32,7 +32,7 @@ RUN mvn -q -B -U -ff -DskipTests package
 
 ################################################################################
 # RUN STAGE
-FROM eclipse-temurin:17-jdk-focal
+FROM eclipse-temurin:21-jdk-alpine
 
 WORKDIR /fdp
 
diff --git a/README.md b/README.md
index a0c1b9645..f4393b053 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ e.g. [app.fairdatapoint.org/swagger-ui.html](https://app.fairdatapoint.org/swagg
 
 ### Technology Stack
 
-- **Java** (JDK 17)
+- **Java** (JDK 21)
 - **MongoDB** (4.2)
 - **Maven** (3.2.5 or higher)
 - **Docker** (19.03.0-ce or higher) - *for building Docker image only*
diff --git a/pom.xml b/pom.xml
index 85fccd7c9..8838b716c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -47,8 +47,8 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <!-- Maven -->
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
 
         <!-- Project related -->
         <spring.rdf.migration.version>1.2.0.RELEASE</spring.rdf.migration.version>