System Modernization

Software Summary

System Modernization project modernizes the legacy Spring-based software using a comprehensive modernization journey, transitioning from Spring framework and JDK 8 to the cutting-edge Spring Boot 3.2 and JDK 21. This strategic move unlocked a suite of advancements, propelling the application into a new era of performance, security, and efficiency.

Goals and Guidelines

  • Transform legacy integrations: Move away from outdated technologies and frameworks hindering performance and compatibility.
  • Boost speed and efficiency: Leverage modern tools and architectures for faster processing and data exchange.
  • Enhance security: Implement robust authentication and authorization mechanisms to safeguard sensitive information.
  • Reduce maintenance costs: Simplify development and maintenance through streamlined tools and practices.
  • Future-proof infrastructure: Align with evolving technologies and industry standards for ongoing agility.
Animation gears

Development Methods

We implement modernization in manageable stages, prioritizing testing and validation at each step, using available documentation, support, and best practices from established communities and continuously monitor performance, security, and developer experience to refine the approach.

Evaluating Existing Config: Reviewe existing Spring configuration files (application-context.xml, web.xml, etc.) to understand bean configurations, dependency injections, and application contexts.
Dependency Analysis: Identify and analyz third-party dependencies used in the project to ensure compatibility with Spring Boot 3.2.
JDK Compatibility: Assess compatibility of the existing codebase with JDK 21, ensuring no deprecated or unsupported features were used.
Have a look at our blog about Jdeps tool.
Update JDK: Upgrade the JDK from 8 to 21 across the development and testing environments. For more info refer to our blog.
Setting Up Spring Boot Project: Create a new Spring Boot project with Spring Boot version 3.2 and configure necessary dependencies.
Refactoring:
Conduct code refactoring to improve code readability, maintainability, and performance.
Deprecate unused classes and components to organize the codebase and improve maintainability.
Upgrade Hibernate: Upgrade Hibernate to the latest version 6.4, gaining improved query performance and caching capabilities. For more info refer to our blog.
Rest & Swagger:
Migrate from Jersey to Spring MVC for RESTful services ensuring compatibility and ease of use.
Upgrade from Swagger v2 to Spring Doc OpenAPI to improve API documentation and specification.
Security Enhancements:
Implement authentication using Spring Security integrated with Keycloak.
Use HashiCorp Vault for storing permissions securely.
LoggingConfiguration: Modify logging configurations to align with Spring Boot's standards and enhance log management and monitoring capabilities.
Containerization: Incorporate Docker in testing and production environments for containerization, ensuring consistency across different environments. For more info about docker refer to our blog.
Deployment: Migrate from WAR plugin to Spring Boot maven JAR plugin for streamlined deployment processes.
Unit Test: Execute unit tests to ensure individual components function correctly within the Spring Boot environment.
Integration Test: Conduct integration tests to verify the interaction between different components in the migrated application.
End-to-End Test: Perform end-to-end tests to validate the functionality and performance of the migrated application as a whole.

Conclusion

Unlock the full potential of your business with custom software development.

  • Tailored solutions to meet your unique needs
  • increased efficiency and productivity
  • improved data security and control

Take your business to the next level with our proven process

Let's build it together
Case study conclusion