в самом вроде нет
насколько помню они как зонтик были
из то же переписки на гитхаб
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The main development of Graal is done in GraalVM. OpenJDK and Metropolis are downstream.
No, this goal is still valid. We still think "Java-on-Java" is right direction for some components of HotSpot.
We learned a lot and made some progress with Graal as JIT in Metropolis. And we have got very good expertise from AOT
work which will help us with Project Leyden.
We will return to work on Metropolis later on. But right now, we think the work on C2 improvement is more important to
keep Java vibrant and competitive.
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