java crach 日志解析
在java开发中，或许会出现如下错误，这种错误大多出现在开发中涉及本地代码的地方。
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000057441b5f, pid=9272, tid=0x0000000000004534
# 信号名称 信号码 程序计数器的值 进程号 线程号
# JRE version: Java(TM) SE Runtime Environment (8.0_171-b11) (build 1.8.0_171-b11)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.171-b11 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# V [jvm.dll+0xc1b5f]
问题帧信息（和pc等价，但表达方式为 本地库+偏移量）
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
这种错误主要来源：
- 自定义本地方法有误，有不合逻辑，很大可能是参数传递有误（或者参数本身有误）
- 虚拟机内存问题，根据日志进行GC分析，合理配置内存参数
- 虚拟机本身错误（可能性很小）
问题分析参考：https://www.cnblogs.com/yelao/p/9814467.html
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000057441b5f, pid=, tid=0x0000000000004534
# 信号名称 信号码 程序计数器的值 进程号 线程号
# JRE version: Java(TM) SE Runtime Environment (.0_171-b11) (build 1.8.0_171-b11)
# Java VM: Java HotSpot(TM) -Bit Server VM (25.171-b11 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# V [jvm.dll+0xc1b5f]
问题帧信息（和pc等价，但表达方式为 本地库+偏移量）
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# --------------- T H R E A D ---------------
//当前线程
Current thread (0x0000000003422800): JavaThread "main" [_thread_in_vm, id=, stack(0x0000000003130000,0x0000000003230000)]
指针 线程类型 名 何种线程 线程id 栈区间 //导致虚拟机终止的非预期的信号信息
siginfo: ExceptionCode=0xc0000005, reading address 0x0000000000000240
信号码 出问题的指针 Registers: //寄存器上下文
RAX=0x000000001821ba50, RBX=0x00000000033184c0, RCX=0x000000000000000a, RDX=0x000000000000000b
RSP=0x000000000322ca30, RBP=0x0000000003422800, RSI=0x0000000003422800, RDI=0x0000000000000220
R8 =0x000000000000000b, R9 =0x00000000033184c0, R10=0x0000000000000000, R11=0x0000000000000005
R12=0x0000000000000006, R13=0x000000000322cb10, R14=0x0000000000000001, R15=0x000000000322cbb0
RIP=0x0000000057441b5f, EFLAGS=0x0000000000010202 Top of Stack: (sp=0x000000000322ca30) //栈顶程序计数器旁的操作吗，可以被反汇编成系统崩溃前的指令
0x000000000322ca30: 00000000575b7021
0x000000000322ca40: 0000000057597b75
0x000000000322ca50: 0000000019cf8f3b
0x000000000322ca60: 0000670b2094b49f 00007ff94fa70428
0x000000000322ca70:
0x000000000322ca80:
0x000000000322ca90: 000000000322cbb0 00000000033184c0
0x000000000322caa0: 000000000322cda8 000000000322cc60
0x000000000322cab0: 00000000574431c7
0x000000000322cac0: 0000000017b11288
0x000000000322cad0:
0x000000000322cae0: 0000000100001ef8 00007ff94be84301
0x000000000322caf0: 00000000013f0f00
0x000000000322cb00: 0000000017b11288
0x000000000322cb10: 0000000017b11288
0x000000000322cb20: 000000000322cf08 Instructions: (pc=0x0000000057441b5f)//出异常处的指令，可反编译为汇编帮助分析
0x0000000057441b3f: f8 0a f0 3b 7c e6 ff
0x0000000057441b4f: ff 0f 7c f6 0f
0x0000000057441b5f: 8b c1 e8 0a a8 0f 4c 8b
0x0000000057441b6f: a5 8b 1d 8d 8b Register to memory mapping: //寄存器和内存映射信息 RAX=0x000000001821ba50 is an unknown value
RBX=0x00000000033184c0 is an unknown value
RCX=0x000000000000000a is an unknown value
RDX=0x000000000000000b is an unknown value
RSP=0x000000000322ca30 is pointing into the stack for thread: 0x0000000003422800
RBP=0x0000000003422800 is a thread
RSI=0x0000000003422800 is a thread
RDI=0x0000000000000220 is an unknown value
R8 =0x000000000000000b is an unknown value
R9 =0x00000000033184c0 is an unknown value
R10=0x0000000000000000 is an unknown value
R11=0x0000000000000005 is an unknown value
R12=0x0000000000000006 is an unknown value
R13=0x000000000322cb10 is pointing into the stack for thread: 0x0000000003422800
R14=0x0000000000000001 is an unknown value
R15=0x000000000322cbb0 is pointing into the stack for thread: 0x0000000003422800 //线程栈。包含了地址，栈顶，栈计数器和线程尚未使用的栈信息
Stack: [0x0000000003130000,0x0000000003230000], sp=0x000000000322ca30, free space=1010k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0xc1b5f]
V [jvm.dll+0xc31c7]
V [jvm.dll+0x215877]
V [jvm.dll+0x215bea]
V [jvm.dll+0x7cad5]
V [jvm.dll+0x7d164]
V [jvm.dll+0x7e836]
V [jvm.dll+0x7a2f7]
V [jvm.dll+0x5e02f]
V [jvm.dll+0x7c544]
V [jvm.dll+0x192731]
V [jvm.dll+0x192acb]
C [java.dll+0x1ead]
C [ag.dll+0x190e]
C 0x0000000003538c67 Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j wqz.zoom.instrument.NativeAgent.another_foo(Ljava/lang/String;[BIILjava/security/ProtectionDomain;Ljava/lang/String;)Ljava/lang/Class;+
j java.lang.ClassLoader.defineClass1(Ljava/lang/String;[BIILjava/security/ProtectionDomain;Ljava/lang/String;)Ljava/lang/Class;+
j java.lang.ClassLoader.defineClass(Ljava/lang/String;[BIILjava/security/ProtectionDomain;)Ljava/lang/Class;+
j java.security.SecureClassLoader.defineClass(Ljava/lang/String;[BIILjava/security/CodeSource;)Ljava/lang/Class;+
j java.net.URLClassLoader.defineClass(Ljava/lang/String;Lsun/misc/Resource;)Ljava/lang/Class;+
j java.net.URLClassLoader.access$(Ljava/net/URLClassLoader;Ljava/lang/String;Lsun/misc/Resource;)Ljava/lang/Class;+
j java.net.URLClassLoader$.run()Ljava/lang/Class;+
j java.net.URLClassLoader$.run()Ljava/lang/Object;+
v ~StubRoutines::call_stub
j java.security.AccessController.doPrivileged(Ljava/security/PrivilegedExceptionAction;Ljava/security/AccessControlContext;)Ljava/lang/Object;+
j java.net.URLClassLoader.findClass(Ljava/lang/String;)Ljava/lang/Class;+
j java.lang.ClassLoader.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+
j sun.misc.Launcher$AppClassLoader.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+
j java.lang.ClassLoader.loadClass(Ljava/lang/String;)Ljava/lang/Class;+
j sun.launcher.LauncherHelper.checkAndLoadMain(ZILjava/lang/String;)Ljava/lang/Class;+
v ~StubRoutines::call_stub --------------- P R O C E S S --------------- Java Threads: ( => current thread ) //线程信息
0x0000000019cc9800 JavaThread "Service Thread" daemon [_thread_blocked, id=, stack(0x000000001a4d0000,0x000000001a5d0000)]
0x0000000019cf8800 JavaThread "C1 CompilerThread2" daemon [_thread_blocked, id=, stack(0x000000001a3d0000,0x000000001a4d0000)]
0x0000000019cc8800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=, stack(0x000000001a2d0000,0x000000001a3d0000)]
0x0000000019cb1000 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=, stack(0x000000001a1d0000,0x000000001a2d0000)]
0x0000000018263000 JavaThread "Attach Listener" daemon [_thread_blocked, id=, stack(0x000000001a0d0000,0x000000001a1d0000)]
0x0000000019c1b800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=, stack(0x0000000019fd0000,0x000000001a0d0000)]
0x000000001823c800 JavaThread "Finalizer" daemon [_thread_blocked, id=, stack(0x0000000019ad0000,0x0000000019bd0000)]
0x0000000003514000 JavaThread "Reference Handler" daemon [_thread_blocked, id=, stack(0x00000000199d0000,0x0000000019ad0000)]
=>0x0000000003422800 JavaThread "main" [_thread_in_vm, id=, stack(0x0000000003130000,0x0000000003230000)] Other Threads: //其他线程
0x0000000018218000 VMThread [stack: 0x00000000198d0000,0x00000000199d0000] [id=]
0x0000000019d8b800 WatcherThread [stack: 0x000000001a5d0000,0x000000001a6d0000] [id=] //虚拟机状态
VM state:not at safepoint (normal execution)
//not at a safepoint：正常运行状态；
//at safepoint：所有线程都因为虚拟机等待状态而阻塞，等待一个虚拟机操作完成；
//synchronizing：一个特殊的虚拟机操作，要求虚拟机内的其它线程保持等待状态 //虚拟机的Mutex和Monitor目前没有被线程持有。Mutex是虚拟机内部的锁，而Monitor则关联到了Java对象
VM Mutex/Monitor currently owned by a thread: None Heap://堆信息。新生代、老生代、永久代
PSYoungGen total 37888K, used 7316K [0x00000000d6000000, 0x00000000d8a00000, 0x0000000100000000)
eden space 32768K, % used [0x00000000d6000000,0x00000000d6725040,0x00000000d8000000)
from space 5120K, % used [0x00000000d8500000,0x00000000d8500000,0x00000000d8a00000)
to space 5120K, % used [0x00000000d8000000,0x00000000d8000000,0x00000000d8500000)
ParOldGen total 86016K, used 0K [0x0000000082000000, 0x0000000087400000, 0x00000000d6000000)
object space 86016K, % used [0x0000000082000000,0x0000000082000000,0x0000000087400000)
Metaspace used 4343K, capacity 5654K, committed 6016K, reserved 1056768K
class space used 473K, capacity 522K, committed 640K, reserved 1048576K Card table byte_map: [0x00000000128e0000,0x0000000012ce0000] byte_map_base: 0x00000000124d0000 Marking Bits: (ParMarkBitMap*) 0x0000000057ba08c0
Begin Bits: [0x0000000013580000, 0x0000000015500000)
End Bits: [0x0000000015500000, 0x0000000017480000) Polling page: 0x0000000000f60000 //代码缓存，这是一块用于编译和保存本地代码的内存，注意是本地代码，它和PermGen（永久代）是不一样的，永久带是用来存放Java类定义的。
CodeCache: size=245760Kb used=1114Kb max_used=1116Kb free=244645Kb
bounds [0x0000000003520000, 0x0000000003790000, 0x0000000012520000]
total_blobs= nmethods= adapters=
compilation: enabled Compilation events ( events):
Event: 0.192 Thread 0x0000000019cc8800 nmethod 0x0000000003636410 code [0x0000000003636540, 0x00000000036365d8]
Event: 0.192 Thread 0x0000000019cc8800 java.lang.String::charAt ( bytes)
Event: 0.192 Thread 0x0000000019cb1000 nmethod 0x0000000003633d50 code [0x0000000003633ea0, 0x0000000003634058]
Event: 0.193 Thread 0x0000000019cc8800 nmethod 0x0000000003633a50 code [0x0000000003633ba0, 0x0000000003633c58]
Event: 0.194 Thread 0x0000000019cf8800 java.lang.AbstractStringBuilder::append ( bytes)
Event: 0.194 Thread 0x0000000019cf8800 nmethod 0x0000000003636f50 code [0x0000000003637120, 0x0000000003637878]
Event: 0.194 Thread 0x0000000019cf8800 sun.nio.cs.ext.DoubleByte$Encoder::encodeChar ( bytes)
Event: 0.194 Thread 0x0000000019cf8800 nmethod 0x0000000003636ad0 code [0x0000000003636c40, 0x0000000003636df0]
Event: 0.195 Thread 0x0000000019cf8800 java.util.Arrays::copyOfRange ( bytes)
Event: 0.196 Thread 0x0000000019cf8800 nmethod 0x0000000003634750 code [0x0000000003634960, 0x0000000003635498] GC Heap History ( events)://GC历史纪录
No events Deoptimization events ( events)://非优化事件
No events Classes redefined ( events): //重定义
Event: 0.186 Thread 0x0000000018218000 redefined class name=java.lang.ClassLoader, count= Internal exceptions ( events)://内部异常
Event: 0.030 Thread 0x0000000003422800 Exception <a 'java/lang/NoSuchMethodError': Method sun.misc.Unsafe.defineClass(Ljava/lang/String;[BII)Ljava/lang/Class; name or signature does not match> (0x00000000d6007cb0) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot
Event: 0.030 Thread 0x0000000003422800 Exception <a 'java/lang/NoSuchMethodError': Method sun.misc.Unsafe.prefetchRead(Ljava/lang/Object;J)V name or signature does not match> (0x00000000d6007f98) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prim
Event: 0.071 Thread 0x0000000003422800 Exception <a 'java/util/zip/ZipException'> (0x00000000d60da258) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jni.cpp, line ]
Event: 0.071 Thread 0x0000000003422800 Exception <a 'java/security/PrivilegedActionException'> (0x00000000d60da908) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jvm.cpp, line ]
Event: 0.071 Thread 0x0000000003422800 Exception <a 'java/security/PrivilegedActionException'> (0x00000000d60dab18) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jvm.cpp, line ]
Event: 0.140 Thread 0x0000000003422800 Exception <a 'java/security/PrivilegedActionException'> (0x00000000d64faf48) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jvm.cpp, line ]
Event: 0.140 Thread 0x0000000003422800 Exception <a 'java/security/PrivilegedActionException'> (0x00000000d64fb340) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jvm.cpp, line ]
Event: 0.140 Thread 0x0000000003422800 Exception <a 'java/security/PrivilegedActionException'> (0x00000000d64fdc98) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jvm.cpp, line ]
Event: 0.140 Thread 0x0000000003422800 Exception <a 'java/security/PrivilegedActionException'> (0x00000000d64fe090) thrown at [C:\re\workspace\--build-windows-amd64-cygwin\jdk8u171\\hotspot\src\share\vm\prims\jvm.cpp, line ] Events ( events):
Event: 0.189 loading class sun/usagetracker/UsageTrackerClient$
Event: 0.189 loading class sun/usagetracker/UsageTrackerClient$ done
Event: 0.191 loading class java/io/FileOutputStream$
Event: 0.191 loading class java/io/FileOutputStream$ done
Event: 0.191 loading class sun/launcher/LauncherHelper
Event: 0.191 loading class sun/launcher/LauncherHelper done
Event: 0.191 loading class wqz/zoom/instrument/Native
Event: 0.191 loading class wqz/zoom/instrument/Native done
Event: 0.195 loading class wqz/zoom/instrument/NativeAgent
Event: 0.195 loading class wqz/zoom/instrument/NativeAgent done Dynamic libraries: //内存映射：虚拟机崩溃时虚拟机内存列表区域
内存 - 区域 正在被使用的类库
0x00007ff79e9c0000 - 0x00007ff79e9f7000 C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
0x00007ff94fa60000 - 0x00007ff94fc41000 C:\WINDOWS\SYSTEM32\ntdll.dll
0x00007ff94d3f0000 - 0x00007ff94d4a2000 C:\WINDOWS\System32\KERNEL32.DLL
0x00007ff94be30000 - 0x00007ff94c0a3000 C:\WINDOWS\System32\KERNELBASE.dll
0x00007ff94f8f0000 - 0x00007ff94f991000 C:\WINDOWS\System32\ADVAPI32.dll
0x00007ff94cfd0000 - 0x00007ff94d06e000 C:\WINDOWS\System32\msvcrt.dll
0x00007ff94f9a0000 - 0x00007ff94f9fb000 C:\WINDOWS\System32\sechost.dll
0x00007ff94d1d0000 - 0x00007ff94d2f4000 C:\WINDOWS\System32\RPCRT4.dll
0x00007ff94f550000 - 0x00007ff94f6e0000 C:\WINDOWS\System32\USER32.dll
0x00007ff94c330000 - 0x00007ff94c350000 C:\WINDOWS\System32\win32u.dll
0x00007ff94f6f0000 - 0x00007ff94f718000 C:\WINDOWS\System32\GDI32.dll
0x00007ff94c350000 - 0x00007ff94c4e2000 C:\WINDOWS\System32\gdi32full.dll
0x00007ff94cc00000 - 0x00007ff94cc9f000 C:\WINDOWS\System32\msvcp_win.dll
0x00007ff94c0b0000 - 0x00007ff94c1aa000 C:\WINDOWS\System32\ucrtbase.dll
0x00007ff93fe80000 - 0x00007ff9400e9000 C:\WINDOWS\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.17134.345_none_fb429a5930656358\COMCTL32.dll
0x00007ff94f220000 - 0x00007ff94f543000 C:\WINDOWS\System32\combase.dll
0x00007ff94c2b0000 - 0x00007ff94c32a000 C:\WINDOWS\System32\bcryptPrimitives.dll
0x00007ff94fa00000 - 0x00007ff94fa2d000 C:\WINDOWS\System32\IMM32.DLL
0x00000000570d0000 - 0x00000000571a2000 D:\java\jre1..0_171\bin\msvcr100.dll
0x0000000057380000 - 0x0000000057c20000 D:\java\jre1..0_171\bin\server\jvm.dll
0x00007ff94f8e0000 - 0x00007ff94f8e8000 C:\WINDOWS\System32\PSAPI.DLL
0x00007ff93e120000 - 0x00007ff93e143000 C:\WINDOWS\SYSTEM32\WINMM.dll
0x00007ff942a10000 - 0x00007ff942a1a000 C:\WINDOWS\SYSTEM32\VERSION.dll
0x00007ff948900000 - 0x00007ff948909000 C:\WINDOWS\SYSTEM32\WSOCK32.dll
0x00007ff94f1b0000 - 0x00007ff94f21c000 C:\WINDOWS\System32\WS2_32.dll
0x00007ff942d70000 - 0x00007ff942d9a000 C:\WINDOWS\SYSTEM32\winmmbase.dll
0x00007ff94c260000 - 0x00007ff94c2a9000 C:\WINDOWS\System32\cfgmgr32.dll
0x0000000057290000 - 0x000000005729f000 D:\java\jre1..0_171\bin\verify.dll
0x0000000057260000 - 0x0000000057289000 D:\java\jre1..0_171\bin\java.dll
0x00000000570a0000 - 0x00000000570c3000 D:\java\jre1..0_171\bin\instrument.dll
0x0000000057240000 - 0x0000000057256000 D:\java\jre1..0_171\bin\zip.dll
0x00007ff94dcc0000 - 0x00007ff94f0ff000 C:\WINDOWS\System32\SHELL32.dll
0x00007ff94f100000 - 0x00007ff94f1a9000 C:\WINDOWS\System32\shcore.dll
0x00007ff94c4f0000 - 0x00007ff94cbfd000 C:\WINDOWS\System32\windows.storage.dll
0x00007ff94cf50000 - 0x00007ff94cfa1000 C:\WINDOWS\System32\shlwapi.dll
0x00007ff94be10000 - 0x00007ff94be21000 C:\WINDOWS\System32\kernel.appcore.dll
0x00007ff94bdd0000 - 0x00007ff94bdef000 C:\WINDOWS\System32\profapi.dll
0x00007ff94bd80000 - 0x00007ff94bdcc000 C:\WINDOWS\System32\powrprof.dll
0x00007ff94bd70000 - 0x00007ff94bd7a000 C:\WINDOWS\System32\FLTLIB.DLL
0x000000006a100000 - 0x000000006a115000 D:\java\eeworkspace\javassist\ag.dll
0x0000000057070000 - 0x0000000057099000 D:\java\jdk1..0_171\jre\bin\java.dll
0x00007ff948170000 - 0x00007ff948339000 C:\WINDOWS\SYSTEM32\dbghelp.dll VM Arguments://虚拟机参数
jvm_args: -javaagent:agent.jar
java_command: wqz.zoom.instrument.Native
java_class_path (initial): agent.jar;agent.jar
Launcher Type: SUN_STANDARD Environment Variables://环境变量
JAVA_HOME=D:\java\jdk1..0_171
CLASSPATH=.;D:\java\jdk1..0_171\lib;D:\java\jdk1..0_171\jre\lib;D:\java\jdk1..0_171\lib\tools.jar;
PATH=C:\Perl64\site\bin;C:\Perl64\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;D:\Program Files\Git\cmd;C:\WINDOWS\System32\OpenSSH\;C:\WINDOWS\system32\config\systemprofile\.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm\;C:\Program Files\Microsoft SQL Server\\Tools\Binn\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;D:\java\jdk1..0_171\jre\bin;C:\Users\qizhuang\.dnx\bin;C:\Users\qizhuang\AppData\Local\Microsoft\WindowsApps;D:\java\jdk1..0_171\bin;D:\tomcat\apache-tomcat-8.5.\bin;D:\java\apache-maven-3.5.\bin;D:\minio;C:\OpenSSL-Win64\bin;C:\Program Files\MySQL\MySQL Server 8.0\bin;D:\Program Files\Docker Toolbox;D:\Program Files\win64-build\bin;D:\java\redis;D:\Program Files\erl7.2.1\bin;D:\Program Files\rabbitmq_3.6.0\rabbitmq_server-3.6.\sbin;D:\Program Files\nginx\nginx-1.14.;C:\Program Files\mingw-w64\x86_64-8.1.-posix-seh-rt_v6-rev0\mingw64\bin;C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin;D:\java\textspace\helloworld;
USERNAME=qizhuang
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family Model Stepping , GenuineIntel --------------- S Y S T E M --------------- OS: Windows 10.0 , bit Build (10.0.17134.1) CPU:total (initial active ) ( cores per cpu, threads per core) family model stepping , cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4., sse4., popcnt, avx, avx2, aes, clmul, erms, 3dnowpref, lzcnt, tsc, tscinvbit, bmi1, bmi2, adx Memory: 4k page, physical 8253040k(3680832k free), swap 14008564k(7055292k free) vm_info: Java HotSpot(TM) -Bit Server VM (25.171-b11) for windows-amd64 JRE (1.8.0_171-b11), built on Mar :: by "java_re" with MS VC++ 10.0 (VS2010) time: Thu Oct ::
elapsed time: seconds (0d 0h 0m 0s)
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