tree db0de020e16759e4ae19ba6fb1ccb0f4e7e8afcc
parent 2e9dc37bb8fb031e8dc8244c3da4a7214e567248
author Mythri Alle <mythria@google.com> 1699974564 +0000
committer Mythri Alle <mythria@google.com> 1699982427 +0000

Don't use class monitor lock when redefining

We used monitor lock on the class to potentially avoid redefinitions
on the same class happening simultaneously. Redefining a class needs
to update method verification flags and it will be non-trivial to
support simultaneous redefinition. Using monitor lock isn't ideal since
that can be obtained from the user code. This CL replaces the monitor
lock with a global lock to avoid simultaneous redefinitions. The current
implementation avoids redefinitions even on different classes but that
is okay since redefinitions don't happen frequently.

Bug: 215658725, 210434701
Test: art/test.py
Change-Id: If6e54ecf1f733181809c0130853ee05c7d6405a2