Misleading error when java executable not found

[t-gebauer]

Description

There is no java installed on my system

1. Install extension
2. Do you want to download the LSP server? yes

Status bar shows permanently 'Initializing Kotlin Language Server...'

Error popup:

The Kotlin Language Client server crashed 5 times in the last 3 minutes. The server will not be restarted.

Extension version

0.2.18

Additional context

There already seems to be some handling for this in languageSetup.ts

https://github.com/fwcd/vscode-kotlin/blob/6e2904b0ce941811eac5c586a6ccae248487bf8e/src/languageSetup.ts#L35-L38

But as far as I can see this won't work because javaExecutablePath will never be null, because findJavaExecutable('java'); defaults to return the binary name.