Hi friends agorrod , I am going to integrate wiredtiger 2.4.1 into ycsb but meet some problem.
Before I report this issue, I passed the C example "ex_thread" both on 2.4.1 and 2.5.0, but when I run the jni example code I hit Core dump. Did any one hit the same error like this, If some one need the core file please paste your email.

Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
Got record: key1 : value1
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f5d53aafb8e, pid=29248, tid=140038805763840
#
# JRE version: Java(TM) SE Runtime Environment (7.0_67-b01) (build 1.7.0_67-b01)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V [libjvm.so+0x653b8e] jni_GetObjectClass+0x2e
#
# Core dump written. Default location: /schooner/backup/wcao/YCSB_ZS/wiredtiger/core or core.29248
#
# An error report file with more information is saved as:
# /schooner/backup/wcao/YCSB_ZS/wiredtiger/hs_err_pid29248.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#