shell启动netca 启动时报错

[oracle@localhost ~]$ netca

Oracle Net Services Configuration:
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f3e9d761cfb, pid=17480, tid=139908068607744
#
# JRE version: 6.0_75-b13
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.75-b01 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# C  [libclntsh.so.12.1+0x720cfb]  short+0xafb
#
# An error report file with more information is saved as:
# /u01/app/oracle/product/12.1.0/dbhome_1/network/tools/hs_err_pid17480.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#