Testsuite name: Install/Removal
JDK/JRE tested: 6u18b04
OS/architecture: WindowsXp-pro-x64
Reproducible: Always
Reproducible on machine:
[If sometimes] Also reproducible on machine:
Is it a platform specific regression: N
[If yes] Is it a new platform support: Y/N
[If yes] Regression relative to OS version:
Is it a Regression: Not sure
[If yes] Regression introduced in release/build:
[If yes] Test result on FCS: Pass/Fail
Test result on FCS: FCS build not released yet.
Test run log location:

Steps to reproduce:
1. install jre5u22-amd64.exe
2. then install jre6u18b04-x64.exe,checked registry again,pls see '2.png',this is correct.
3. uninstall jre6 first and jre5 second,checked the registry.

#Actual behavior:
After uninstall jre6 ,both the key 'HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Plug-in' and 'Java Web Start' of 1.5 were recovered.Please refer to 3.png,this is uncorrect due to AU for 64bit only supported from 6u12.
Then uninatall jre5,the two keys still exist after uninstall.Please refer to 4.png


This can be reproduced over all Windows-x64 OS.