A practical, vendor-neutral plan for moving off Oracle Java SE to a free OpenJDK distribution — with the cost case, the rollout sequence, and the testing that keeps production stable.
For most organisations, the Oracle Java SE Universal Subscription is now the largest line item they never planned for. Migrating to a free OpenJDK distribution removes that cost entirely — but only a disciplined migration removes it safely. Done badly, a migration leaves a half-converted estate that still carries Oracle exposure.
The Java Migration Playbook sets out the full sequence, drawn from real OpenJDK migrations across 340+ Java engagements. It covers the business case, the estate inventory, the choice of distribution, the staged rollout, the compatibility testing, and the clean decommission — so you can exit Oracle Java with confidence rather than risk.
Modelling the Oracle subscription against migration effort, so the decision rests on numbers rather than instinct.
Finding every Oracle JDK across servers, desktops, containers, and cloud — the step that decides whether a migration succeeds.
Temurin, Corretto, Zulu, Microsoft build of OpenJDK, and Red Hat — how to match support model and lifecycle to your needs.
A non-production-first, version-by-version, application-by-application sequence that contains risk at every step.
The handful of areas where Oracle JDK and OpenJDK differ — fonts, TLS, garbage collection flags, and packaged tools.
Removing Oracle binaries, proving the estate is clear, and closing the compliance exposure for good.
Three quick details and the full white paper opens straight away. No cost, no obligation.
Drawn from more than 340 Oracle Java licensing engagements — assessments, audit defences, renewals, and migrations across every major industry.
Written purely for the organisation that licenses Java. No Oracle relationship, no reseller margin, and no incentive except protecting your budget.
No distribution is sold to you. The playbook compares the OpenJDK options on the merits so the choice stays yours.
If we take on your Oracle Java audit and cannot reduce the claim, we refund our fees. See how the guarantee works →
An independent migration assessment will tell you what to migrate, in what order, and what it will save.
Weekly Oracle Java updates, audit alerts, and negotiation intel.