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Migrate Spring Boot Application from Java 8 to Java 17 #49

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5689416
feat: migrate from Java 8 to Java 17 and Spring Boot 2.1.4 to 3.3.13
devin-ai-integration[bot] Oct 2, 2025
f9bd063
fix: update SecurityConfig to permit all requests
devin-ai-integration[bot] Oct 2, 2025
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4 changes: 2 additions & 2 deletions README.md
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@@ -1,4 +1,4 @@
# Banking Application using Java8, Spring Boot, Spring Security and H2 DB
# Banking Application using Java 17, Spring Boot, Spring Security and H2 DB

RESTful API to simulate simple banking operations.

Expand Down Expand Up @@ -38,7 +38,7 @@ https://projectlombok.org/setup/eclipse

### Prerequisites

* Java 8
* Java 17
* Spring Tool Suite 4 or similar IDE
* [Maven](https://maven.apache.org/) - Dependency Management

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58 changes: 31 additions & 27 deletions pom.xml
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Expand Up @@ -5,7 +5,7 @@
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<version>3.3.13</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.coding.exercise</groupId>
Expand All @@ -15,7 +15,7 @@
<description>Bank App Spring Boot Project</description>

<properties>
<java.version>1.8</java.version>
<java.version>17</java.version>
</properties>

<dependencies>
Expand All @@ -41,31 +41,27 @@
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>2.2.224</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
Expand All @@ -79,6 +75,14 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>17</source>
<target>17</target>
</configuration>
</plugin>
</plugins>
</build>

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27 changes: 8 additions & 19 deletions src/main/java/com/coding/exercise/bankapp/config/ApplicationConfig.java
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import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.info.Info;

@Configuration
@EnableSwagger2
public class ApplicationConfig {

@Bean
public Docket api() {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.paths(PathSelectors.any())
.build();
}

private ApiInfo apiInfo() {
return new ApiInfoBuilder().title("BANKING APPLICATION REST API")
.description("API for Banking Application.")
.version("1.0.0").build();
public OpenAPI customOpenAPI() {
return new OpenAPI()
.info(new Info()
.title("BANKING APPLICATION REST API")
.description("API for Banking Application.")
.version("1.0.0"));
}
}
28 changes: 17 additions & 11 deletions src/main/java/com/coding/exercise/bankapp/config/SecurityConfig.java
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package com.coding.exercise.bankapp.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.web.SecurityFilterChain;

/**
*
* Spring security denied access to h2-console.
* This configuration will resolve 403 forbidden error when accessing h2-console.
* Spring security configuration for H2 console access.
* This configuration resolves 403 forbidden error when accessing h2-console.
*
* @author sbathina
*
*/
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@EnableWebSecurity
public class SecurityConfig {

@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity.authorizeRequests().antMatchers("/").permitAll().and()
.authorizeRequests().antMatchers("/h2-console/**").permitAll();

httpSecurity.csrf().disable();
httpSecurity.headers().frameOptions().disable();
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.authorizeHttpRequests(auth -> auth
.anyRequest().permitAll()
)
.csrf(csrf -> csrf.disable())
.headers(headers -> headers.frameOptions(frame -> frame.disable()));

return http.build();
}
}
26 changes: 0 additions & 26 deletions src/main/java/com/coding/exercise/bankapp/controller/AccountController.java
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import com.coding.exercise.bankapp.domain.TransferDetails;
import com.coding.exercise.bankapp.service.BankingServiceImpl;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;

@RestController
@RequestMapping("accounts")
@Api(tags = { "Accounts and Transactions REST endpoints" })
public class AccountController {

@Autowired
private BankingServiceImpl bankingService;

@GetMapping(path = "/{accountNumber}")
@ApiOperation(value = "Get account details", notes = "Find account details by account number")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success"),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public ResponseEntity<Object> getByAccountNumber(@PathVariable Long accountNumber) {

return bankingService.findByAccountNumber(accountNumber);
}

@PostMapping(path = "/add/{customerNumber}")
@ApiOperation(value = "Add a new account", notes = "Create an new account for existing customer.")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success"),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public ResponseEntity<Object> addNewAccount(@RequestBody AccountInformation accountInformation,
@PathVariable Long customerNumber) {

return bankingService.addNewAccount(accountInformation, customerNumber);
}

@PutMapping(path = "/transfer/{customerNumber}")
@ApiOperation(value = "Transfer funds between accounts", notes = "Transfer funds between accounts.")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success", response = Object.class),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public ResponseEntity<Object> transferDetails(@RequestBody TransferDetails transferDetails,
@PathVariable Long customerNumber) {

return bankingService.transferDetails(transferDetails, customerNumber);
}

@GetMapping(path = "/transactions/{accountNumber}")
@ApiOperation(value = "Get all transactions", notes = "Get all Transactions by account number")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success"),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public List<TransactionDetails> getTransactionByAccountNumber(@PathVariable Long accountNumber) {

return bankingService.findTransactionsByAccountNumber(accountNumber);
Expand Down
32 changes: 0 additions & 32 deletions src/main/java/com/coding/exercise/bankapp/controller/CustomerController.java
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import com.coding.exercise.bankapp.domain.CustomerDetails;
import com.coding.exercise.bankapp.service.BankingServiceImpl;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;

@RestController
@RequestMapping("customers")
@Api(tags = { "Customer REST endpoints" })
public class CustomerController {

@Autowired
private BankingServiceImpl bankingService;

@GetMapping(path = "/all")
@ApiOperation(value = "Find all customers", notes = "Gets details of all the customers")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success"),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public List<CustomerDetails> getAllCustomers() {

return bankingService.findAll();
}

@PostMapping(path = "/add")
@ApiOperation(value = "Add a Customer", notes = "Add customer and create an account")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success"),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public ResponseEntity<Object> addCustomer(@RequestBody CustomerDetails customer) {

return bankingService.addCustomer(customer);
}

@GetMapping(path = "/{customerNumber}")
@ApiOperation(value = "Get customer details", notes = "Get Customer details by customer number.")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Success", response = CustomerDetails.class, responseContainer = "Object"),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public CustomerDetails getCustomer(@PathVariable Long customerNumber) {

return bankingService.findByCustomerNumber(customerNumber);
}

@PutMapping(path = "/{customerNumber}")
@ApiOperation(value = "Update customer", notes = "Update customer and any other account information associated with him.")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success", response = Object.class),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public ResponseEntity<Object> updateCustomer(@RequestBody CustomerDetails customerDetails,
@PathVariable Long customerNumber) {

return bankingService.updateCustomer(customerDetails, customerNumber);
}

@DeleteMapping(path = "/{customerNumber}")
@ApiOperation(value = "Delete customer and related accounts", notes = "Delete customer and all accounts associated with him.")
@ApiResponses(value = { @ApiResponse(code = 200, message = "Success", response = Object.class),
@ApiResponse(code = 400, message = "Bad Request"),
@ApiResponse(code = 500, message = "Internal Server Error") })

public ResponseEntity<Object> deleteCustomer(@PathVariable Long customerNumber) {

return bankingService.deleteCustomer(customerNumber);
Expand Down
18 changes: 9 additions & 9 deletions src/main/java/com/coding/exercise/bankapp/model/Account.java
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import java.util.Date;
import java.util.UUID;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import jakarta.persistence.CascadeType;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.OneToOne;
import jakarta.persistence.Temporal;
import jakarta.persistence.TemporalType;

import lombok.AllArgsConstructor;
import lombok.Builder;
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10 changes: 5 additions & 5 deletions src/main/java/com/coding/exercise/bankapp/model/Address.java
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Expand Up @@ -2,11 +2,11 @@

import java.util.UUID;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;

import lombok.AllArgsConstructor;
import lombok.Builder;
Expand Down
14 changes: 7 additions & 7 deletions src/main/java/com/coding/exercise/bankapp/model/BankInfo.java
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Expand Up @@ -2,13 +2,13 @@

import java.util.UUID;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import jakarta.persistence.CascadeType;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.OneToOne;

import lombok.AllArgsConstructor;
import lombok.Builder;
Expand Down
10 changes: 5 additions & 5 deletions src/main/java/com/coding/exercise/bankapp/model/Contact.java
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import java.util.UUID;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;

import lombok.AllArgsConstructor;
import lombok.Builder;
Expand Down
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