Test Steps:
1.Check preconditions. VERIFY There are no JRE's installed.
2.Install 6u27.
3.Enable MSI debugging by setting:
reg add "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Installer" /v Debug /t REG_DWORD /d 7 /f
reg add "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Installer" /v Logging /t REG_SZ /d voicewarmupx /f
4.Install 7b147 JRE.
VERIFY Old AU is uninstalled by looking at the corresponding log file in %TEMP% directory. Logfile should include the text, "Product: Java Auto Updater -- Removal completed successfully".
VERIFY New AU is installed by looking at the corresponding log file in %TEMP% for text "Product: Java Auto Updater -- Installation operation completed success fully."

Result:
In the MSI.log file for old AU uninstall, there is no such log as "Product: Java Auto Updater -- Removal completed successfully".
But as "Product: Java Auto Updater -- Removal Failed." which is not expected.
Actually AU has been updated from 2.0.6.1 to 2.1.5.1. There should be the successful log in log file.