启动J_meter测试服务器性能，发现GUI界面总是有warning提示：WARNING: Could not
open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002.RegCreateKeyEx(...) returned error code 5.
在网上搜了搜，发现是J_meter需要写注册表。
Problem(Abstract)
After
running a clemb command under Win_7 with Modeler 14.1 the following error
is produced:
java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs
at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
Cause
The
error occurs because java.util.prefs.WindowsPreferences is trying to save
information in HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs instead of under
HKEY_CURRENT_USER\Software\JavaSoft\Prefs.
java.util.prefs.WindowsPreferences需要保存信息到HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs.
Environment
Win_ 7 64-bit
Resolving the problem
The
work around is to login as the administrator and create the
key HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs.
以管理员身份登录，创建HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs项
虽然Jmeter不会保存任何东西到该项，仍会将信息保存到HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs。
