Sync gen-sigtests fixes to release130#3784

Merged

neilcsmith-net merged 2 commits intorelease130from

Mar 16, 2022

Commits on Mar 14, 2022

Explicitly expose JPDA classes and compile with --release 8 argument
Jaroslav Tulach
committed

Commits on Mar 15, 2022

Merge pull request #3778 from JaroslavTulach/jtulach/ExposeJPDA
neilcsmith-net
authored