Ubuntu 速度变慢是因为 Net bean 病毒，因为我的电脑在下载 Net bean 后开始出现异常。现在更新一下，我的 eclipse 在打开设计选项卡后崩溃了。我认为 Java SDK 存在问题，每次我使用 Oracle JDK 时都会生成崩溃报告
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007fb2c85942b7, pid=7654, tid=0x00007fb37dd40700
#
# JRE version: Java(TM) SE Runtime Environment (8.0_111-b14) (build 1.8.0_111-b14)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.111-b14 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# C [libgdk-x11-2.0.so.0+0x4e2b7] gdk_display_open+0x57
#
# 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.
#
--------------- T H R E A D ---------------
Current thread (0x00007fb37400b000): JavaThread "main" [_thread_in_native, id=7655, stack(0x00007fb37dc40000,0x00007fb37dd41000)]
siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000114
Registers:
RAX=0x0000000000000000, RBX=0x00007fb2cc7fa8d0, RCX=0x0000000000000000, RDX=0x0000000000000000
RSP=0x00007fb37dd3c980, RBP=0x00007fb37dd3c990, RSI=0x00007fb2c85940b0, RDI=0x00007fb2cc7fa8d0
R8 =0x00007fb2cc7f9190, R9 =0x0000000000000000, R10=0x0000000000000009, R11=0x0000000000017101
R12=0x00007fb2c9cf9bb0, R13=0x00007fb2c9cf2710, R14=0x00007fb3742af780, R15=0x00007fb2cc7e62e8
RIP=0x00007fb2c85942b7, EFLAGS=0x0000000000010246, CSGSFS=0x0000000000000033, ERR=0x0000000000000006
TRAPNO=0x000000000000000e
Top of Stack: (sp=0x00007fb37dd3c980)
0x00007fb37dd3c980: 61626c6c6f726373 6e75203a6f732e72
0x00007fb37dd3c990: 0000000000000000 0000000000000000
0x00007fb37dd3c9a0: 2064656e69666564 203a6c6f626d7973
0x00007fb37dd3c9b0: 0000000000000000 0000000000000000
0x00007fb37dd3c9c0: 75646f6d5f6b7467 6c707369645f656c
0x00007fb37dd3c9d0: 0000000000000000 0000000000000000
0x00007fb37dd3c9e0: 0000000000000000 00007fb2cc7e6340
0x00007fb37dd3c9f0: 00007fb2c9cf2710 00007fb3742af780
0x00007fb37dd3ca00: 00007fb2cc7e62e8 00007fb37d1c098c
0x00007fb37dd3ca10: 00007fb2cc7e6340 0000000000000000
0x00007fb37dd3ca20: 0000000000000001 e7a001fd974ae500
0x00007fb37dd3ca30: 0000000000000000 0000000000000001
0x00007fb37dd3ca40: 00007fb37dd3cae0 00007fb2c9cf9bb0
0x00007fb37dd3ca50: 00007fb2c9cf2710 00007fb3742af780
0x00007fb37dd3ca60: 00007fb2cc7e62e8 00007fb2c8563fcf
0x00007fb37dd3ca70: 0000000000000001 0000000000000001
0x00007fb37dd3ca80: 00007fb37dd3cae0 00007fb2c892b522
0x00007fb37dd3ca90: 00007fb37dd3cae0 00007fb2c9d03c91
0x00007fb37dd3caa0: 00007fb37400b1f8 000000000000000c
0x00007fb37dd3cab0: 00007fb2cc5abf88 00007fb2c9afba38
0x00007fb37dd3cac0: 0000000000000000 00007fb2c9afba38
0x00007fb37dd3cad0: 00007fb37dd3cb58 00007fb37400b000
0x00007fb37dd3cae0: 00007fb37dd3caf0 00007fb2c9cfe0c9
诸如此类。