From 8a5246028458173c0f38fafed077ebcae8345e2d Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Tue, 28 Apr 2026 20:14:28 +0000
Subject: [PATCH] Upgrade to Java 21, Spring Boot 3.4.5, and modernize build
 tooling

- Upgrade spring-boot-starter-parent from 3.3.3 to 3.4.5
- Upgrade java.version from 17 to 21
- Remove incorrect maven-compiler-plugin config (source/target 1.8)
- Update mysql-connector-java to mysql-connector-j 9.1.0
- Update Maven wrapper distribution URL to Maven 3.9.9
- Update Dockerfile to maven:3.9-eclipse-temurin-21 and eclipse-temurin:21-jre-alpine
- Replace deprecated MySQL8Dialect with MySQLDialect
- Make mvnw executable

Co-Authored-By: Arjun Mishra <arjunsaxmishra@gmail.com>
---
 .mvn/wrapper/maven-wrapper.properties     |  2 +-
 Dockerfile                                |  4 ++--
 mvnw                                      |  0
 pom.xml                                   | 18 +++++-------------
 src/main/resources/application.properties |  2 +-
 5 files changed, 9 insertions(+), 17 deletions(-)
 mode change 100644 => 100755 mvnw

diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
index 8f96f52c..654af46a 100644
--- a/.mvn/wrapper/maven-wrapper.properties
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -16,4 +16,4 @@
 # under the License.
 wrapperVersion=3.3.2
 distributionType=only-script
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.7/apache-maven-3.9.7-bin.zip
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip
diff --git a/Dockerfile b/Dockerfile
index 079acabe..f90cf252 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-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 eclipse-temurin:21-jre-alpine as deployer
 
 # Copy build from stage 1 (builder)
 COPY --from=builder /src/target/*.jar /src/target/bankapp.jar
diff --git a/mvnw b/mvnw
old mode 100644
new mode 100755
diff --git a/pom.xml b/pom.xml
index fc5bfeac..bcf9b826 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>3.4.5</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>21</java.version>
 	</properties>
 	<dependencies>
 		<dependency>
@@ -53,8 +53,8 @@
 
 		<dependency>
 			<groupId>mysql</groupId>
-			<artifactId>mysql-connector-java</artifactId>
-			<version>8.0.33</version>
+			<artifactId>mysql-connector-j</artifactId>
+			<version>9.1.0</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency>
@@ -75,15 +75,7 @@
 				<groupId>org.springframework.boot</groupId>
 				<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>
+
 		</plugins>
 	</build>
 
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 08663a63..97d40e36 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -7,5 +7,5 @@ spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 
 # JPA & Hibernate configuration
 spring.jpa.hibernate.ddl-auto=update
-spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQLDialect
 spring.jpa.show-sql=true