From 1b59c247381f47e2e9c48f481c84c90c301b837d Mon Sep 17 00:00:00 2001
From: Shawn Azman <shawn.d.azman@gmail.com>
Date: Tue, 2 Dec 2025 18:30:39 +0000
Subject: [PATCH] Upgrade Java version from 17 to 21

- Update java.version property in pom.xml from 17 to 21
- Fix maven-compiler-plugin source/target from 1.8 to 21 (resolving inconsistency)
- Update Dockerfile builder stage from maven:3.8.3-openjdk-17 to maven:3.8.3-openjdk-21
- Update Dockerfile runtime stage from openjdk:17-alpine to openjdk:21-alpine

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 Dockerfile | 4 ++--
 pom.xml    | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 079acabe..4c9df048 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@
 #----------------------------------
 
 # Import docker image with maven installed
-FROM maven:3.8.3-openjdk-17 as builder 
+FROM maven:3.8.3-openjdk-21 as builder
 
 # Add maintainer, so that new user will understand who had written this Dockerfile
 MAINTAINER Madhup Pandey<madhuppandey2908@gmail.com>
@@ -25,7 +25,7 @@ RUN mvn clean install -DskipTests=true
 #--------------------------------------
 
 # Import small size java image
-FROM openjdk:17-alpine as deployer
+FROM openjdk:21-alpine as deployer
 
 # Copy build from stage 1 (builder)
 COPY --from=builder /src/target/*.jar /src/target/bankapp.jar
diff --git a/pom.xml b/pom.xml
index fc5bfeac..547e6c8d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@
 		<url/>
 	</scm>
 	<properties>
-		<java.version>17</java.version>
+		<java.version>21</java.version>
 	</properties>
 	<dependencies>
 		<dependency>
@@ -80,8 +80,8 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.8.0</version>
 				<configuration>
-    					<source>1.8</source>
-    					<target>1.8</target>
+    					<source>21</source>
+    					<target>21</target>
 				</configuration>
 			</plugin>
 		</plugins>