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USE CASE: JAVA UPGRADE

Java 8 to Java 21 migration with AI

Sanciti AI upgrades legacy Java applications built on Java 6, 7 or 8 to Java 21 and later LTS versions. It finds deprecated APIs, refactors the code, generates unit tests and checks that the upgraded application behaves exactly like the original, reducing migration time from months to weeks.

Why teams delay Java upgrades

Older Java versions no longer get critical security patches, and they limit which modern frameworks and cloud platforms you can use. Codebases pile up deprecated APIs and outdated patterns that new developers find hard to follow.

Upgrading by hand means touching thousands of files and hoping the tests catch every change in behavior. So the upgrade keeps getting pushed back.

How Sanciti AI upgrades Java applications

Four steps, each reviewed by your developers.

1

Code analysis and audit

Scans the codebase for deprecated APIs, obsolete patterns and compatibility issues with newer Java versions.
2

Intelligent refactoring

Replaces deprecated methods and introduces modern Java features such as records, switch expressions, var, text blocks and pattern matching. It can also modularize code with JPMS.
3

Testing and validation

Generates unit tests for the refactored code and confirms behavioral parity with the original, inside your CI/CD pipeline.
4

Reports and documentation

Produces before-and-after reports, security improvements and migration guides for your developers.

What a Java 21 upgrade delivers

Area Outcome
Migration time
Months reduced to weeks
Manual effort
Less reliance on scarce legacy Java expertise
Security
Vulnerabilities tied to outdated Java versions removed
Platform
Aligned with current Java LTS versions and ecosystem standards

Related Java use cases

Need more than a version upgrade? See Java monolith to microservices migration. For how generated code is security scanned, see security and compliance.

FAQS

Yes. Sanciti AI upgrades Java 6, 7 and 8 applications to Java 21 and later LTS versions.
It replaces deprecated APIs and introduces modern features such as records, switch expressions, var, text blocks and pattern matching, with optional JPMS modularization.
Sanciti AI generates unit tests for the refactored code and checks behavioral parity with the original application. How
Automated analysis, refactoring and testing reduce migration time from months to weeks.

Request a Java upgrade assessment

Share one Java application. We will show you the deprecated APIs and compatibility issues the audit finds.

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Sanciti AI
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Full-service framework including:

Sanciti RGEN

Generates Requirements, Use cases, from code base.

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Sanciti AI PSAM

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

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