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Java Enterprise

Java 8 to 21 -
Without the Big Bang.

We migrate aging Java systems to Spring Boot 3 and Java 21 using automated code transformation and strangler-fig decomposition that keeps production running throughout.

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What's included

Legacy Java Modernisation.

✔OpenRewrite automated transformation: Java 8 patterns migrated to Java 21 idioms across the entire codebase in hours, not weeks.
✔Strangler fig decomposition: bounded contexts extracted one by one as independent services - production keeps working throughout.
✔Database decomposition: per-service schemas with event sourcing to maintain consistency without a synchronous cutover.
✔Spring Boot 3 upgrade path: Spring XML to auto-configuration, Java EE to Jakarta EE, legacy Hibernate to Hibernate 6.
✔CI/CD confidence gates: Testcontainers-validated tests at every migration step, proving behaviour is preserved.
Technologies
Java 21 Spring Boot 3 OpenRewrite Strangler Fig Pattern Spring Cloud Gateway Testcontainers Hibernate 6 Jakarta EE PostgreSQL Docker Kubernetes
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Get in touch

Let's talk about your platform.

Whether it's a new Spring Boot build, a legacy modernisation, or something in between - tell us what you're working on and we'll respond within 24 hours.

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Location
Jaipur, India · Global delivery
We reply within 24 hours.
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