要用Jmeter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 SoftwareJavaSoftPrefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
在网上搜了搜，发现是Jmeter需要写注册表。
解决办法如下
http://stackoverflow.com/questions/20698493/jmeter-starts-with-warning-message
http://www-01.ibm.com/support/docview.wss?uid=swg21496098
Problem(Abstract)
After running a clemb command under Windows 7 with Modeler 14.1 the following error is produced:
Java.util.prefs.WindowsPreferences
WARNING: Could not open/create prefs root node SoftwareJavaSoftPrefs
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_MACHINESoftwareJavaSoftPrefs instead of under HKEY_CURRENT_USERSoftwareJavaSoftPrefs.
java.util.prefs.WindowsPreferences需要保存信息到HKEY_LOCAL_MACHINESoftwareJavaSoftPrefs而不是HKEY_CURRENT_USERSoftwareJavaSoftPrefs。
Environment
Windows 7 64-bit
Resolving the problem
The work around is to login as the administrator and create the key HKEY_LOCAL_MACHINESoftwareJavaSoftPrefs.
以管理员身份登录，创建HKEY_LOCAL_MACHINESoftwareJavaSoftPrefs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_MACHINESoftwareJavaSoftPrefs。
Here is the log that I see in the command prompt:
C:UsersAyusman>jmeter
Dec 20, 2013 12:52:57 PM java.util.prefs.WindowsPreferences
WARNING: Could not open/create prefs root node SoftwareJavaSoftPrefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
Is any body aware what could be the issue? I did check the registry information HKEY_LOCAL_MACHINESOFTWAREJavaSoft and I do not see a "Prefs" folder in there. But am I supposed to create a registry entry there?
System Information:
Windows 8, 32 bit.
JMeter Version: 2.10
Java Version: 1.7.0_25
Thanks.