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USE CASE: APPLICATION MODERNIZATION

Java monolith to microservices migration

Sanciti AI breaks Java and Java Struts monoliths into independently deployable microservices, using AI agents to document the old code, generate the new services and prove they behave the same. A financial services firm modernized its Struts monolith at 50% lower cost than the manual estimate.

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Read the Struts case study

Why Java monolith migrations are hard

In a large Java monolith, one change can touch everything. Releases have to be coordinated across teams, and a bug in one module can take down the whole application.

Older frameworks like Struts make it worse. They no longer get security updates, and much of the business logic sits in stored procedures and code that nobody has documented in years. That is usually where migration plans stall.

How Sanciti AI migrates a Java monolith

LEGMOD runs the migration in waves. Your architects decide where each service boundary goes and approve every wave.
1

Sanciti RGEN

Reads the monolith, including the database layer and stored procedures, and writes a traceable specification of what it does.
2

Sanciti LEGMOD

Sequences waves by coupling risk and business criticality, so the most tangled parts are handled with the most care.
3

Sanciti CodeGen

Generates the new microservices, scored against OWASP and NIST, with SAST and SCA scans before review.
4

Sanciti TestAI

Compares the monolith and the new services to confirm they return the same results.

Java Struts monolith migration results

Results for a financial services firm that moved off a Java Struts monolith.

Measure Result for a financial services firm
Modernization cost
50% lower than the manual estimate
Documentation
5x faster
Peer review time
35% lower
Time to market
25% faster for new features

Read the case study

Related modernization use cases

Running .NET instead of Java? See .NET Framework migration. Still on a mainframe? See COBOL to Java migration. Need a version upgrade instead of an architecture change? See Java 8 to Java 21 migration. For industry detail, see legacy modernization for financial services.

FAQS

Yes. We moved a financial services firm off a Java Struts monolith to cloud-native microservices at 50% lower cost than the manual estimate.
RGEN maps dependencies and coupling across the monolith. Your architects use that map to set the boundaries, and LEGMOD plans the waves around them.
RGEN analyzes the database layer along with the application code, so stored procedure logic is documented before anything is rewritten.
Yes. Services move one wave at a time, and the monolith keeps serving production until each wave is tested and approved.

Request a Java modernization assessment

Send us one monolith. We will show you the dependency map RGEN produces and where the first service could be split out.

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Sanciti AI
Full Stack SDLC Platform

Full-service framework including:

  • Code Generation
  • Code Migration
  • Refactoring
  • Test Case & Scripts
  • Legacy Conversion
  • MCP Capable

Sanciti AI Agents

Sanciti RGEN

Generates Requirements, Use cases, from code base.

Sanciti TestAI

Generates Automation and Performance scripts.

Sanciti AI CVAM

Code vulnerability assessment & Mitigation.

Sanciti AI PSAM

Production support & maintenance, Ticket analysis & reporting, Log monitoring analysis & reporting.

Sanciti AI LEGMOD

AI-Powered Legacy Modernization That
Accelerates, Secures, and Scales

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See how Sanciti Al can transform your App Dev & Testing

SancitiAl is the leading generative Al framework that incorporates code generation, testing automation, document generation, reverse engineering, with flexibility and scalability.

This leading Gen-Al framework is smarter, faster and more agile than competitors.

Why teams choose SancitiAl:

  • Saves overall effort and costs upwards of 40%
  • Provides a faster time-to-market for your systems
  • Generate code, update code, automate testing and scripting in one platform
  • Continuously learns - adapts to every release
  • Faster test cycles - lower test maintenance costs