Error message "could not connect to server" is misleading in case of server error

[Cat-Lord]

When configuring a project I encountered a weird error. I don't know the suggested way of naming project but since it isn't the artifact name I though of naming it more 'commercially' using proper diacritics of my language. Pressing 'Generate' resulted in an 'Could not connect to server. Please check your network.' error.

Edit: Tested with Firefox and Chrome.

Expected result: Correct project generation or an "Invalid name " error within the form.

Actual result: "Could not connect to server. Please check your network." popup error (see screenshot)

Sample input:

Error preview:

[wilkinsona]

The error message is rather misleading as it isn't a connection failure but a server side error. Generating the project results in a 500 response from the server:

{
    "timestamp": "2022-09-05T14:39:37.471+00:00",
    "status": 500,
    "error": "Internal Server Error",
    "message": "Malformed input or input contains unmappable characters: MixérApplication.java",
    "path": "/starter.zip"
}

[snicoll]

Perhaps we could split this in two, keeping this issue for improving the error message?

[wilkinsona]

Yeah, I think that sounds good. It really is two separate problems.

[vnayakg]

@snicoll, I would like to work on this, could you assigned me this?

[mhalbritter]

Hey @vnayakg, i've assigned it to you. Have fun!

[mhalbritter]

Hey @vnayakg, how's it going? Are you still working on it?

[vnayakg]

Hey @mhalbritter, @oodamien had already raised pr for this, unassigned myself

[mhalbritter]

Superseded by #1624.