On Wed, 14 Jan 2026 15:05:24 GMT, Matias Saavedra Silva <[email protected]> wrote:
> The alternate substitutability method relies on an injected Java object > "acmp_maps" which is currently not being archived and thus leads to crashes > attempting to run with a CDS archive. The issue stems from inline klasses > being archived and thus loaded at dumptime while the acmp_maps oops is > generated in the class file parser, leading this oop to be absent at runtime. > > Additionally, the other injected static field "null_reset" was not being > archived either, so both of these fields are properly stored in the archived > heap. In the case of CDS/AOT configurations where the heap is not dumped, > acmp_maps is regenerated at class loading using a copy of the array stored in > metadata. > > Tests and APIs are updated to conform to the new output generated by the use > of acmp_maps and remove some test cases which target the old substitutability > method. This pull request has now been integrated. Changeset: 8f8398ed Author: Matias Saavedra Silva <[email protected]> URL: https://git.openjdk.org/valhalla/commit/8f8398ed6822ebda78c17230555e3ae210e3aacb Stats: 215 lines in 13 files changed: 174 ins; 32 del; 9 mod 8374729: [lworld] Enabling CDS crash with UseAltSubstitutabilityMethod Reviewed-by: coleenp, fparain ------------- PR: https://git.openjdk.org/valhalla/pull/1903
