Many organizations struggle to keep their java applications running while also trying to innovate. Development and operations teams must provide new demands for application services and also maintain, operate, and improve existing application portfolios. Unfortunately like everything, Java also gets its age. This tutorial is a quick introduction to modernize your legacy Java application to a modern one, without much hassle.
According to a java version survey in Jetbrains, Around 20% of all java applications still use java versions below 8 (Which we might definitely call as legacy applications). Around 83% of java applications are using java 8, as a guess getting its age and getting being slowly legacy applications, as recently java 14 is released.
That’s a quick tutorial to update your java application to use a recent version and library. Just a warning beforehand, these kinds of modernization attempts might be really hard and cumbersome for really huge applications, and for these kinds of legacy applications, you might get a quote from Oreon’s java Legacy Software modernization service.
Another warning to mention before modernizing application structure and libraries to use recent java versions, these kinds of modernization should mostly be done in coordination with operating system modernization. Maybe it is time to think about containerizing your architecture using our DevOps Consultancy services.
During a modernisation process of a legacy application, keep these things in mind:
- Always Start with a working/running application!
- Always Take small steps
- Upgrade one library or version at a time
- Always change one thing at a time
- Always Write tests when not already in place.
- In case something is broken, just revert back to a working version.