Help - Java HashMap cannot be cast to class Author

[lunar rover]

<@&987246399047479336> please have a look, thanks.

[lunar rover]

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[plush yew]

When i request directly Author with

{
  "name": "Auteur 1",
  "mail": "[email protected]"
}

work correctly

[lunar rover]

Detected code, here are some useful tools:

Formatted code

{
  "name" : "Auteur 1", "mail" : "[email protected]"}

[dense igloo]

what kind of List is this?

[plush yew]

it's just default list, here it's ArrayList

[dense igloo]

getFirst?

ah prob using java 21 right?

[plush yew]

yep ... forcing by teacher 😢

[dense igloo]

its good lol

[plush yew]

but i don't understand the probleme, why java detect HashMap when i request by project

[lunar rover]

Changed the category to Frameworks.

<@&987246452180930620> please have a look, thanks.

[echo shore]

please share the entire stacktrace

not just the first line

[hazy burrow]

How is that bad, this is very good, usually they are stuck in the past

[plush yew]

ok sry for waiting so long

i've resolve my main problem, just to need to cast with a json (use jackson)

List<Author> deserializedAuthors = new ArrayList<>();

for (var i = 0; i < project.authors.size(); i++) {
    Author author = new ObjectMapper().convertValue(project.authors.get(i), Author.class);
    deserializedAuthors.add(author);
}

and it's work fine for me !

thx anyway !

[agile light]

You get every author json separately?

If it is present in the same file you can convert it to a list directly too