Segfault when building openjdk13 with openjdk12

[Abigail G]

Hello,

I'm working on packaging several openjdk versions for Void Linux.

When I build jdk13 with jdk12 as the boot jdk, I get a segfault very
soon into the build. I am not a java developer, so I'm not quite sure
what to make of the log, trace, and core dump. Anyone have any ideas?

Interestingly, when I repeatedly restart the build without removing any
of the partially-built state, it eventually succeeds (usually after 1-3
retries), and I have been able to use the result to build jdk14 without
issue.

I've attached a .zip with the relevant build logs, hotspot error log,
and core dump (if that doesn't work: https://0x0.st/oHxe.zip).

The scripts I'm using to build jdk12 and 13 are available here:
https://github.com/classabbyamp/void-packages/blob/openjdk17/srcpkgs/openjdk12-bootstrap/template
https://github.com/classabbyamp/void-packages/blob/openjdk17/srcpkgs/openjdk13-bootstrap/template

TIA,

Abigail G