vmTestbase/nsk/jvmti/RedefineClasses/StressRedefine/TestDescription.java

# Internal Error (/scratch/opt/mach5/mesos/work_dir/slaves/c4ee7e63-1ded-4e8c-9581-ce26f27e3af4-S150176/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/1a72085d-2fb3-4c17-95fb-f55cfe80d904/runs/d0af250e-7cd1-4b65-81d4-a5fc073dbfa1/workspace/open/src/hotspot/share/runtime/handles.inline.hpp:73), pid=20865, tid=20923
# assert(((Metadata*)obj)->is_valid()) failed: obj is valid
#

And

vmTestbase/nsk/jvmti/RedefineClasses/StressRedefineWithoutBytecodeCorruption/TestDescription.java

#
# Internal Error (/scratch/opt/mach5/mesos/work_dir/slaves/c4ee7e63-1ded-4e8c-9581-ce26f27e3af4-S150176/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/1a72085d-2fb3-4c17-95fb-f55cfe80d904/runs/d0af250e-7cd1-4b65-81d4-a5fc073dbfa1/workspace/open/src/hotspot/share/oops/instanceKlass.cpp:3791), pid=3887, tid=3908
# assert(method->is_obsolete() || method->is_running_emcp()) failed: emcp method cannot run after emcp bit is cleared
#

Moving purging these out of do_unloading might not be working.