Application crashes with ZGC enabled:
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f032a68c9f0, pid=3749, tid=17683
#
# JRE version: Java(TM) SE Runtime Environment (12.0+24) (build 12-ea+24)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (12-ea+24, mixed mode, tiered, z gc, linux-amd64)
# Problematic frame:
# V  [libjvm.so+0xb6a9f0]  Method::is_method_handle_intrinsic() const+0x0
#
# Core dump will be written. Default location: /scratch/opt/mach5/mesos/work_dir/slaves/2dd962d0-8988-479b-a804-57ab764ada59-S1434/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/61aeae41-3810-40d2-bd4e-7e74720c985a/runs/a9236a68-5b66-40b6-a729-736439b0a08c/testOutput/test-support/jtreg_closed_test_hotspot_jtreg_applications_runthese_RunThese24H_java/scratch/0/core.3749
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#

---------------  S U M M A R Y ------------

Command Line: -XX:MaxRAMPercentage=8 -XX:+UnlockExperimentalVMOptions -XX:+UseZGC --add-opens=java.base/java.net=ALL-UNNAMED -Dseed=4184370445907880 -XX:MaxRAMPercentage=50 applications.runthese.Runner -duration 1440 -runlist /scratch/opt/mach5/mesos/work_dir/slaves/2dd962d0-8988-479b-a804-57ab764ada59-S1434/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/61aeae41-3810-40d2-bd4e-7e74720c985a/runs/a9236a68-5b66-40b6-a729-736439b0a08c/testOutput/test-support/jtreg_closed_test_hotspot_jtreg_applications_runthese_RunThese24H_java/scratch/0/./RunTheseTestList.dat

Host: Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz, 6 cores, 29G, Oracle Linux Server release 7.1
Time: Sat Dec 15 14:04:57 2018 PST elapsed time: 156 seconds (0d 0h 2m 36s)

---------------  T H R E A D  ---------------

Current thread (0x00007f00a40e2cc0):  JavaThread "/scratch/opt/mach5/mesos/work_dir/jib-master/install/com/oracle/jpg/bigapps/jck/9.0/jck-9.0-20170922.165600-1.tar.gz/JCK-runtime-9/classes javasoft.sqe.tests.api.java.util.stream.Collectors.ToList" daemon [_thread_in_Java, id=17683, stack(0x00007f00198df000,0x00007f00199e0000)]

Stack: [0x00007f00198df000,0x00007f00199e0000],  sp=0x00007f00199dcdb8,  free space=1015k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0xb6a9f0]  Method::is_method_handle_intrinsic() const+0x0
V  [libjvm.so+0x4392c2]  BarrierSetNMethod::is_armed(nmethod*)+0x12
V  [libjvm.so+0xe79ac3]  ZBarrierSetNMethod::nmethod_entry_barrier(nmethod*)+0x73
V  [libjvm.so+0x438fb4]  BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x54
v  ~StubRoutines::nmethod_entry_barrier

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000028

Register to memory mapping:

RAX=0x0 is NULL
RBX=0x00007f0314bc6e10 is at entry_point+-464 in (nmethod*)0x00007f0314bc6e10
RCX=0x0000000000000007 is an unknown value
RDX=0x0 is NULL
RSP=0x00007f00199dcdb8 is pointing into the stack for thread: 0x00007f00a40e2cc0
RBP=0x00007f00199dcdd0 is pointing into the stack for thread: 0x00007f00a40e2cc0
RSI=0x00007f0314bc6e10 is at entry_point+-464 in (nmethod*)0x00007f0314bc6e10
RDI=0x0 is NULL
R8 =0x00007f008f1ec760 points into unknown readable memory: 50 b1 68 8c 00 7f 00 00
R9 =0x0000000000004513 is an unknown value
R10=0x00007f02fd39a510 is pointing into metadata
R11=0x0000000000000228 is an unknown value
R12=0x00007f0314bc6e10 is at entry_point+-464 in (nmethod*)0x00007f0314bc6e10
R13=0x00007f00a40e2cc0 is a thread
R14=0x00007f0324032a20 points into unknown readable memory: 18 7c e8 2a 03 7f 00 00
R15=0x00007f00a40e2cc0 is a thread


Registers:
RAX=0x0000000000000000, RBX=0x00007f0314bc6e10, RCX=0x0000000000000007, RDX=0x0000000000000000
RSP=0x00007f00199dcdb8, RBP=0x00007f00199dcdd0, RSI=0x00007f0314bc6e10, RDI=0x0000000000000000
R8 =0x00007f008f1ec760, R9 =0x0000000000004513, R10=0x00007f02fd39a510, R11=0x0000000000000228
R12=0x00007f0314bc6e10, R13=0x00007f00a40e2cc0, R14=0x00007f0324032a20, R15=0x00007f00a40e2cc0
RIP=0x00007f032a68c9f0, EFLAGS=0x0000000000010206, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00007f00199dcdb8)
0x00007f00199dcdb8:   00007f0329f5af25 00007f00199dce70
0x00007f00199dcdc8:   00007f0324032a20 00007f00199dcdf0
0x00007f00199dcdd8:   00007f0329f5b2c2 00007f008f1ec760
0x00007f00199dcde8:   00007f0314bc6e10 00007f00199dce30 

Instructions: (pc=0x00007f032a68c9f0)
0x00007f032a68c9d0:   00 5b 5d c3 0f 1f 40 00 b8 01 00 00 00 c3 66 90
0x00007f032a68c9e0:   66 81 7f 28 25 01 55 48 89 e5 5d 0f 94 c0 c3 90
0x00007f032a68c9f0:   0f b7 47 28 55 48 89 e5 5d 66 2d 20 01 66 83 f8
0x00007f032a68ca00:   04 0f 96 c0 c3 90 66 2e 0f 1f 84 00 00 00 00 00 

Stack slot to memory mapping:
stack at sp + 0 slots: 0x00007f0329f5af25: <offset 0x0000000000438f25> in /scratch/opt/mach5/mesos/work_dir/jib-master/install/jdk/12/24/linux-x64.jdk/jdk-12/lib/server/libjvm.so at 0x00007f0329b22000
stack at sp + 1 slots: 0x00007f00199dce70 is pointing into the stack for thread: 0x00007f00a40e2cc0
stack at sp + 2 slots: 0x00007f0324032a20 points into unknown readable memory: 18 7c e8 2a 03 7f 00 00
stack at sp + 3 slots: 0x00007f00199dcdf0 is pointing into the stack for thread: 0x00007f00a40e2cc0
stack at sp + 4 slots: 0x00007f0329f5b2c2: <offset 0x00000000004392c2> in /scratch/opt/mach5/mesos/work_dir/jib-master/install/jdk/12/24/linux-x64.jdk/jdk-12/lib/server/libjvm.so at 0x00007f0329b22000
stack at sp + 5 slots: 0x00007f008f1ec760 points into unknown readable memory: 50 b1 68 8c 00 7f 00 00
stack at sp + 6 slots: 0x00007f0314bc6e10 is at entry_point+-464 in (nmethod*)0x00007f0314bc6e10
stack at sp + 7 slots: 0x00007f00199dce30 is pointing into the stack for thread: 0x00007f00a40e2cc0


---------------  P R O C E S S  ---------------

Threads class SMR info:
_java_thread_list=0x00007f00a02300b0, length=43, elements={
0x00007f03240131d0, 0x00007f03240d79a0, 0x00007f03240da7c0, 0x00007f03240f9620,
0x00007f03240fb140, 0x00007f03240fcbb0, 0x00007f03240fe750, 0x00007f03241b1210,
0x00007f03241b56d0, 0x00007f032436dfb0, 0x00007f0324375390, 0x00007f03243765d0,
0x00007f03243788b0, 0x00007f0324379d90, 0x00007f032437b2b0, 0x00007f032437c7c0,
0x00007f0084112b80, 0x00007f0084117d00, 0x00007f0084119300, 0x00007f008411a810,
0x00007f00840fb5e0, 0x00007f003c44bd40, 0x00007f003d0b9ae0, 0x00007f00254fd0c0,
0x00007f00255cfd70, 0x00007f00255d0820, 0x00007f00255d1230, 0x00007f00255d2020,
0x00007f00255d29a0, 0x00007f00255e44e0, 0x00007f001e6cfe90, 0x00007f00a419ff30,
0x00007f0026f76870, 0x00007f003dd050d0, 0x00007f00b011d750, 0x00007f00943144b0,
0x00007f009c1e9a00, 0x00007f00c85e4130, 0x00007f00a024edc0, 0x00007f00a817c390,
0x00007f00a40e2cc0, 0x00007f009464aa00, 0x00007f00a022f1c0
}