JDK-8047383 was fixed in 8u40b13. But issue is still reproducible.

The hs_err head is
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGBUS (0xa) at pc=0xffffffff712ea184, pid=4315, tid=72
#
# JRE version: Java(TM) SE Runtime Environment (8.0_40) (build 1.8.0_40-internal-20150109165513.amurillo.hs25-40-b24-snap-b00)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.40-b24 compiled mode solaris-sparc )
# Problematic frame:
# J 87270 C2 weblogic.wsee.jaxws.framework.jaxrpc.EnvironmentFactory$SimulatedWsdlDefinitions.<init>(Lweblogic/wsee/jaxws/framework/jaxrpc/EnvironmentFactory;Lcom/sun/xml/ws/api/model/wsdl/WSDLModel;)V (313 bytes) @ 0xffffffff712ea184 [0xffffffff712e90a0+0x10e4]
#
# Core dump written. Default location: /export/local/aurora/sandbox/results/weblogic/core or core.4315
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#

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

Current thread (0x0000000101a37800): JavaThread "[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon [_thread_in_Java, id=72, stack(0xffffffff2ff00000,0xffffffff30000000)]

siginfo: si_signo: 10 (SIGBUS), si_code: 1 (BUS_ADRALN), si_addr: 0xfffffff9adb9deac

Registers:
 G1=0xfffffff9adc72650 G2=0x0000000101a37800 G3=0x0000000040000000 G4=0xffffffff4f91f2a8
 G5=0xffffffff4f801388 G6=0x0000000000000000 G7=0xffffffff7b213a00 Y=0x0000000000000000
 O0=0xfffffff9adc72678 O1=0xfffffff9adb9da78 O2=0xfffffff9adc71c50 O3=0xffffffff23ebf988
 O4=0xfffffff9adc72318 O5=0xff7fffff6c000000 O6=0xffffffff2fffb3f1 O7=0xffffffff712ea17c
 L0=0xfffffff9adc714c8 L1=0xfffffff9adc71310 L2=0xfffffff9adc72640 L3=0xfffffff9adb9ead8
 L4=0xfffffff9adc72678 L5=0x0000000000000005 L6=0xffffffff23dd8d48 L7=0xfffffff9adc726c0
 I0=0xfffffff9adb9def0 I1=0xfffffff9adc71310 I2=0xfffffff9adc71ce8 I3=0xffffffff23ecaa18
 I4=0xffffffff23ec8ff8 I5=0xffffffff4f912e58 I6=0xffffffff2fffb4c1 I7=0xffffffff712dfb54
 PC=0xffffffff712ea184 nPC=0xffffffff712ea188


Top of Stack: (sp=0xffffffff2fffbbf0)
0xffffffff2fffbbf0: fffffff9adc714c8 fffffff9adc71310
0xffffffff2fffbc00: fffffff9adc72640 fffffff9adb9ead8
0xffffffff2fffbc10: fffffff9adc72678 0000000000000005
0xffffffff2fffbc20: ffffffff23dd8d48 fffffff9adc726c0
0xffffffff2fffbc30: fffffff9adb9def0 fffffff9adc71310
0xffffffff2fffbc40: fffffff9adc71ce8 ffffffff23ecaa18
0xffffffff2fffbc50: ffffffff23ec8ff8 ffffffff4f912e58
0xffffffff2fffbc60: ffffffff2fffb4c1 ffffffff712dfb54
0xffffffff2fffbc70: fffffff9adb9b128 fffffff9adb9da78
0xffffffff2fffbc80: fffffff9adb9dec8 0000000000000000
0xffffffff2fffbc90: 0000000000000000 3f60115555555555
0xffffffff2fffbca0: 41a354a000000000 41ae000000000000
0xffffffff2fffbcb0: 0000000000000000 0000000000000000
0xffffffff2fffbcc0: ffffffff23e29088 ffffffff23dd8d48
0xffffffff2fffbcd0: fffffffffffffff8 fffffff9adc714c8
0xffffffff2fffbce0: ff7fffff6c000000 ffffffff23e29088

Instructions: (pc=0xffffffff712ea184)
0xffffffff712ea164: c0 72 20 48 e2 72 20 10 e2 72 20 20 e2 72 20 50
0xffffffff712ea174: a8 10 00 08 90 10 00 14 7e cb 1f d9 01 00 00 00
0xffffffff712ea184: ee 5e 3f bc ab 35 30 09 e6 75 20 18 c0 2d c0 15
0xffffffff712ea194: c2 58 a0 60 ea 58 a0 70 ae 00 60 40 3a ed c7 b5

Register to memory mapping:

G1=0xfffffff9adc72650 is an oop

EOF

JDK-8047383 was fixed in 8u40b13. But issue is still reproducible