Forgot to Change Mercurial's Commit Comment?

If you're using TortoiseHg (my version is 2.9.2) and it's the last thing you did (the commit), then you can simply go to Repository --> Rollback/Undo. What you need is the Undo and to preserve the changed files in the workspace. Follow the instructions then and you're set!

WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.

I got this while running an Eclipse Configuration (Run Configurations) on a GWT project on Windows. If Eclipse cannot do it, you can do it manually...

• Start regedit 
• Navigate to the following path
  • HKEY_LOCAL_MACHINE\Software\JavaSoft
• Right click on the JavaSoft folder and click on New -> Key
• Name the new Key Prefs

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