Server: A fatal error has been detected by the Java Runtime Environment

Server was running for several hours when all of a sudden the server crashed because of a "fatal error."

Nobody was even on the server at the time, and the log doesn't show anyone trying to connect before the crash.

Stack: [0x00007fe940117000,0x00007fe940218000],  sp=0x00007fe940216530,  free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
J 15349 C2 bnm.a([Lit/unimi/dsi/fastutil/shorts/ShortList;)Lhe; (109 bytes) @ 0x00007fe94ef4ef7f [0x00007fe94ef4eb00+0x47f]
J 16109 C2 bnm.a(Lbna;Laxs;Lgy;)V (649 bytes) @ 0x00007fe94f3e587c [0x00007fe94f3e3b60+0x1d1c]
J 10382 C2 tb.b(Lbmo;)V (60 bytes) @ 0x00007fe94da86450 [0x00007fe94da860c0+0x390]
j  tb.d()Z+95
J 18097 C2 tc.i_()V (388 bytes) @ 0x00007fe94edbc21c [0x00007fe94edbbd40+0x4dc]
J 10607 C2 net.minecraft.server.MinecraftServer.w()V (427 bytes) @ 0x00007fe94e615050 [0x00007fe94e614d60+0x2f0]
J 10290 C2 net.minecraft.server.MinecraftServer.v()V (350 bytes) @ 0x00007fe94ded4e00 [0x00007fe94ded4d60+0xa0]
J 15372% C2 net.minecraft.server.MinecraftServer.run()V (503 bytes) @ 0x00007fe94d223698 [0x00007fe94d223520+0x178]
j  java.lang.Thread.run()V+11
v  ~StubRoutines::call_stub
V  [libjvm.so+0x665d13]
V  [libjvm.so+0x663277]
V  [libjvm.so+0x663857]
V  [libjvm.so+0x6a4fe4]
V  [libjvm.so+0xa160ab]
V  [libjvm.so+0xa1656f]
V  [libjvm.so+0x8bbfd2]
C  [libpthread.so.0+0x7494]  start_thread+0xc4