From 2d78ffd09677b938d8995f970236f2b9a5f1b601 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Tue, 13 Jan 2026 00:27:40 +0000
Subject: [PATCH 1/2] Migrate from Java 17 to Java 22

Phase 1-4 of Java 22 Migration:

pom.xml changes:
- Update Java version from 17 to 22
- Update Spring Boot from 3.3.3 to 3.3.5
- Update Maven compiler plugin from 3.8.0 to 3.11.0
- Update source/target from 1.8 to 22
- Update MySQL connector from mysql-connector-java 8.0.33 to mysql-connector-j 9.0.0

Dockerfile changes:
- Update build stage from maven:3.8.3-openjdk-17 to maven:3.9-eclipse-temurin-22
- Update runtime stage from openjdk:17-alpine to eclipse-temurin:22-jre-alpine

README.md changes:
- Update Jenkins installation instructions from openjdk-17-jre to openjdk-22-jre

Kubernetes changes:
- Update bankapp-deployment.yml image tag to java22 for staging deployment

Co-Authored-By: Satwik Bebortha <satwik.bebortha@cognition.ai>
---
 Dockerfile                        |  4 ++--
 README.md                         |  2 +-
 kubernetes/bankapp-deployment.yml |  2 +-
 pom.xml                           | 26 +++++++++++++-------------
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 079acabe..f5c70a33 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:3.9-eclipse-temurin-22 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 eclipse-temurin:22-jre-alpine as deployer
 
 # Copy build from stage 1 (builder)
 COPY --from=builder /src/target/*.jar /src/target/bankapp.jar
diff --git a/README.md b/README.md
index 2f49958e..aac1e425 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ sudo su
 - <b>Install Jenkins</b>
 ```bash
 sudo apt update -y
-sudo apt install fontconfig openjdk-17-jre -y
+sudo apt install fontconfig openjdk-22-jre -y
 
 sudo wget -O /usr/share/keyrings/jenkins-keyring.asc \
   https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
diff --git a/kubernetes/bankapp-deployment.yml b/kubernetes/bankapp-deployment.yml
index 45a35b6f..3343e855 100644
--- a/kubernetes/bankapp-deployment.yml
+++ b/kubernetes/bankapp-deployment.yml
@@ -17,7 +17,7 @@ spec:
     spec:
       containers:
       - name: bankapp
-        image: trainwithshubham/bankapp-eks:v2
+        image: trainwithshubham/bankapp-eks:java22
         ports:
         - containerPort: 8080
         env:
diff --git a/pom.xml b/pom.xml
index fc5bfeac..43abce27 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.3.3</version>
+		<version>3.3.5</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
@@ -27,7 +27,7 @@
 		<url/>
 	</scm>
 	<properties>
-		<java.version>17</java.version>
+		<java.version>22</java.version>
 	</properties>
 	<dependencies>
 		<dependency>
@@ -52,9 +52,9 @@
 		</dependency>
 
 		<dependency>
-			<groupId>mysql</groupId>
-			<artifactId>mysql-connector-java</artifactId>
-			<version>8.0.33</version>
+			<groupId>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<version>9.0.0</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency>
@@ -76,14 +76,14 @@
 				<artifactId>spring-boot-maven-plugin</artifactId>
 			</plugin>
 			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-    					<source>1.8</source>
-    					<target>1.8</target>
-				</configuration>
-			</plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-compiler-plugin</artifactId>
+					<version>3.11.0</version>
+					<configuration>
+						<source>22</source>
+						<target>22</target>
+					</configuration>
+				</plugin>
 		</plugins>
 	</build>
 

From d3bca51d4e21b380d845e447145a487e63327bf3 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Tue, 13 Jan 2026 22:48:01 +0000
Subject: [PATCH 2/2] Fix: Use openjdk-21-jre for Jenkins installation

openjdk-22-jre is not available in Ubuntu repositories.
Available versions are: 8, 11, 17, 18, 21, 25.
Using openjdk-21-jre as the closest LTS version.

Note: The application itself still runs on Java 22 via Docker
(eclipse-temurin:22-jre-alpine), this only affects the Jenkins
server installation.

Co-Authored-By: Satwik Bebortha <satwik.bebortha@cognition.ai>
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index aac1e425..c76964d5 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ sudo su
 - <b>Install Jenkins</b>
 ```bash
 sudo apt update -y
-sudo apt install fontconfig openjdk-22-jre -y
+sudo apt install fontconfig openjdk-21-jre -y
 
 sudo wget -O /usr/share/keyrings/jenkins-keyring.asc \
   https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key