Failed to handle key=u. The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type undefined

[yeasincode]

To Reproduce when setting { "before": [ "", "g", "u" ], "commands": [ "java.action.navigateToSuperImplementation" ] } Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

VSCodeVim version: 1.17.1

Stack trace

``` TypeError [ERR_INVALID_ARG_TYPE]: The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type undefined at Function.from (buffer.js:305:9) at t.StandardLanguageClient. (c:\Users\416\.vscode-insiders\extensions\redhat.java-0.70.0\dist\extension.js:15:79302) at Generator.next () at c:\Users\416\.vscode-insiders\extensions\redhat.java-0.70.0\dist\extension.js:15:72286 at new Promise () at r (c:\Users\416\.vscode-insiders\extensions\redhat.java-0.70.0\dist\extension.js:15:72031) at c:\Users\416\.vscode-insiders\extensions\redhat.java-0.70.0\dist\extension.js:15:78660 at _executeContributedCommand (c:\Users\416\AppData\Local\Programs\Microsoft VS Code Insiders\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:701:753) at _doExecuteCommand (c:\Users\416\AppData\Local\Programs\Microsoft VS Code Insiders\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:700:867) at _.executeCommand (c:\Users\416\AppData\Local\Programs\Microsoft VS Code Insiders\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:700:773) at Object.executeCommand (c:\Users\416\AppData\Local\Programs\Microsoft VS Code Insiders\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:996:29) at f.handleRemapping (c:\Users\416\.vscode-insiders\extensions\vscodevim.vim-1.17.1\out\extension.js:9:501849) at f.sendKey (c:\Users\416\.vscode-insiders\extensions\vscodevim.vim-1.17.1\out\extension.js:9:499795) at t.Remappers.sendKey (c:\Users\416\.vscode-insiders\extensions\vscodevim.vim-1.17.1\out\extension.js:9:496237) at runMicrotasks () at processTicksAndRejections (internal/process/task_queues.js:94:5) at async F.handleKeyEvent (c:\Users\416\.vscode-insiders\extensions\vscodevim.vim-1.17.1\out\extension.js:9:471257) at async Object.promise (c:\Users\416\.vscode-insiders\extensions\vscodevim.vim-1.17.1\out\extension.js:9:235740) at async Object.runTasks (c:\Users\416\.vscode-insiders\extensions\vscodevim.vim-1.17.1\out\extension.js:9:621914) ```

[mycf]

me too