This occurs on Mac OS/X (not yet test on other platforms).

java org.junit.runner.JUnitCore com.wiredtiger.test.AsyncTest
JUnit version 4.11
.[thread 22787 also had an error]#

# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x000000012d3ef85f, pid=53369, tid=23043
[thread 23299 also had an error]#

# JRE version: Java(TM) SE Runtime Environment (8.0-b132) (build 1.8.0-b132)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.0-b70 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# C [libwiredtiger_java.0.dylib+0x385f] _wt_async_op_java_raw+0x1f
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /Users/dda/wt/git/tmp1/build_posix/lang/java/hs_err_pid53369.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.
#
./SomeJunitTests: line 8: 53369 Abort trap: 6 java org.junit.runner.JUnitCore com.wiredtiger.test.AsyncTest