Java crash in guarantee(obj->mark() == markOopDesc::encode(mid)) failed: invariant

Issue

• Java crash with the following in the fatal error log:

#  Internal Error (synchronizer.cpp:1493), pid=108674, tid=0x00007fff44c7f170
#  guarantee(obj->mark() == markOopDesc::encode(mid)) failed: invariant
#
# JRE version: OpenJDK Runtime Environment (8.0_332-b09) (build 1.8.0_332-b09)
# Java VM: OpenJDK 64-Bit Server VM (25.332-b09 mixed mode linux-ppc64le compressed oops)
...
Stack: [0x00007fff44a80000,0x00007fff44c80000],  sp=0x00007fff44c7dd50,  free space=2039k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0xc63af4]  VMError::report_and_die()+0x2c4
V  [libjvm.so+0x3ecfc4]  report_vm_error(char const*, int, char const*, char const*)+0x94
V  [libjvm.so+0xba5f74]  ObjectSynchronizer::deflate_idle_monitors()+0x394
V  [libjvm.so+0xa881ac]  SafepointSynchronize::do_cleanup_tasks()+0x40c
V  [libjvm.so+0xa8b6f4]  SafepointSynchronize::begin()+0x6e4
V  [libjvm.so+0xc6c96c]  VMThread::loop()+0x6bc
V  [libjvm.so+0xc6cce4]  VMThread::run()+0xf4
V  [libjvm.so+0x9a6aec]  java_start(Thread*)+0x22c
C  [libpthread-2.28.so+0x9658]  start_thread+0xf8
...
7fff15d90000-7fff15dd0000 r--s 00520000 fd:09 67109322                   /path/to/jt400.jar