when run APPM code,there is always an erros,as follws. my environment is ubuntu 16, java 1.8.

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

SIGSEGV (0xb) at pc=0x00007f4d434f45df, pid=35243, tid=0x00007f4e77623700

JRE version: Java(TM) SE Runtime Environment (8.0_181-b13) (build 1.8.0_181-b13)

Java VM: Java HotSpot(TM) 64-Bit Server VM (25.181-b13 mixed mode linux-amd64 compressed oops)

Problematic frame:

C [libnativeppm.so+0x75df] PPM_CONTEXT::update2(PPM_CONTEXT::STATE*)+0x31

Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again

If you would like to submit a bug report, please visit:

http://bugreport.java.com/bugreport/crash.jsp

The crash happened outside the Java Virtual Machine in native code.

See problematic frame for where to report the bug.

Be deeply grateful!!!