JDK-8286300 : Port JEP 425 to S390X
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Priority: P4
  • Status: In Progress
  • Resolution: Unresolved
  • Submitted: 2022-05-06
  • Updated: 2025-05-27
Related Reports
Blocks :  
JDK-8357810 - [s390x] Port JEP 518 - JFR Cooperative Sampling
Relates :  
JDK-8335163 - [s390x] test failure - PrintClasses.java
Relates :  
JDK-8284161 - Implementation of Virtual Threads (Preview)
Relates :  
JDK-8288128 - S390X: Fix crashes after JDK-8284161 (Virtual Threads)
Description
JEP 425 is targeted to JDK 19. Porting work will required for s390x. The initial integration of the JEP adds "Unimplemented" stubs for this architecture. For comparison, the initial implementation has about 2000 lines of x64 and about the same for aarch64.

Development Branch: https://github.com/offamitkumar/jdk/tree/implements_virtual_thread
Comments
Hi @Alan I'll be working on s390x Port for JEP 425. Could you please assign it to me. Thanks.
31-03-2023