The Danger of Code Rot
Legacy backends suffer from structural bottlenecks that slow down engineering teams and increase infrastructure requirements:
- Shared Database Contention: Tightly coupled monolithic subdomains triggering database deadlocks and blocking releases.
- Garbage Collection Pauses: Unoptimized G1GC settings leading to multi-second JVM latency spikes.
- High Hardware Costs: Thread-per-request models consuming significant memory and OS threads on high-concurrency APIs.
Our Modernization Playbook
Strangler Fig Monolith Migration
We do not write new platforms from scratch. We slice off business subdomains and route traffic incrementally using API gateways or Application Load Balancers.
Java 21 & Virtual Threads (Spring Boot 3)
We update application threading architectures to leverage lightweight virtual threads. This boosts web API throughput without reactive refactoring.
JVM Heap & G1GC Optimization
We analyze memory leaks using Eclipse MAT heap dump analysis, adjust generation sizes, and tune garbage collector flags to eliminate latency spikes.