Upgrading a Warehouse Management Platform from Java 7 to Java 21 Using ASIMOV

A global warehouse management provider needed to upgrade its mission-critical Java 7 platform to address security risks, performance constraints, and technical debt.

Accion Labs used ASIMOV to refactor more than one million lines of code, replace deprecated APIs, generate JUnit 5 tests, and deliver staged, container-ready deployments aligned with Java 21.

Key Highlights

• LLM-assisted upgrade of 1M+ lines of Java 7 code

• Deprecated API replacement aligned with Java 21 standards  

• Automated JUnit 5 test generation for regression safety

• Container-ready, staged deployments for zero-disruption rollout

• Security exposure reduced by 75% and inventory sync performance doubled

The upgrade created a stable, supportable, and performance-ready platform for
large-scale warehouse operations.

Download the full case study to see how Accion Labs delivered a seamless modernization of a critical supply chain system without interrupting real-time operations.