Blackberry BB UEM (BES) v12.6 Server does not start after Java Update

Unfortunately the latest Java SE Runtime Environment killed the BES UEM Application Server. To fix this I had to replace the latest Java Version with one that is compatible with BES12 UEM 12.6. After that you need to re-run the setup. Otherwise BES UEM tries to access the old Java installation.

1. Make sure you download the correct (compatible Java Version) for your BES (12) UEM, check the compatibility Matrix from Blackberry, see http://help.blackberry.com/de/blackberry-uem-compatibility-matrix/current/
2. Obtain the 64-bit version of the Java Runtime Environment software from the Oracle Oracle Java SE 8 Archive Downloads (in my case Java SE Runtime Environment 8u121 -  Windows x64 Offline)
3. Start the installer and let the installer remove the old versions
4. Now the Application Event Log will show you something like this when you try to start the BES services:
   
5. Unfortunately you need to re-run the BES12 installer for the current version on the machine(s) where the JRE was updated. Start the installer with the BES12 administrative account from the extracted setup files, for example:
   
   C:\BlackBerry\UEM\BlackBerry UEM 12.6.3\Setup.exe (Make sure you select the current installed version (take a look at Control Panel\All Control Panel Items\Programs and Features)
6. Reboot the server, the BES Server should be running again now.
7. Optional: Disable Java Updates to prevent another downtime... :)
   Create a CMD file and run it with the following to change the registry settings:

reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v EnableJavaUpdate /t REG_DWORD /d 0 /f /reg:32
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v EnableAutoUpdateCheck /t REG_DWORD /d 0 /f /reg:32
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v NotifyDownload /t REG_DWORD /d 0 /f /reg:32
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v NotifyInstall /t REG_DWORD /d 0 /f /reg:32
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v EnableJavaUpdate /t REG_DWORD /d 0 /f /reg:64
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v EnableAutoUpdateCheck /t REG_DWORD /d 0 /f /reg:64
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v NotifyDownload /t REG_DWORD /d 0 /f /reg:64
reg add "HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Update\Policy" /v NotifyInstall /t REG_DWORD /d 0 /f /reg:64