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This suggested edit was approved and applied to the post about 2 months ago by talex‭.

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Json deserialization of enum, forbid int
  • I have DTO that contains `enum`:
  • ```
  • @Getter
  • @Setter
  • static class Foo {
  • Bar bar;
  • }
  • enum Bar {
  • X, Y
  • }
  • ```
  • When I deserialize json it allow to use `int` as values.
  • ```
  • var objectMapper = new ObjectMapper();
  • Foo foo = objectMapper.readValue("""
  • {"bar": 1}"
  • """,
  • Foo.class
  • );
  • ```
  • I expect error here, but get value `Bar.Y`.
  • How can I validate Json so only string values for `enum`s allowed?
  • Here id json library dependency:
  • ```
  • <dependency>
  • <groupId>com.fasterxml.jackson.core</groupId>
  • <artifactId>jackson-databind</artifactId>
  • <version>2.17.1</version>
  • </dependency>
  • ```
  • I have a DTO that contains an `enum` field:
  • ```java
  • @Getter
  • @Setter
  • static class Foo {
  • Bar bar;
  • }
  • enum Bar {
  • X, Y
  • }
  • ```
  • When I deserialize a JSON, it allows `int` as values:
  • ```java
  • var objectMapper = new ObjectMapper();
  • Foo foo = objectMapper.readValue("""
  • {"bar": 1}"
  • """,
  • Foo.class
  • );
  • ```
  • I expect an error here, but get the value `Bar.Y`.
  • How can I validate a JSON so only string values for `enum` are allowed?
  • Here's the JSON library dependency:
  • ```xml
  • <dependency>
  • <groupId>com.fasterxml.jackson.core</groupId>
  • <artifactId>jackson-databind</artifactId>
  • <version>2.17.1</version>
  • </dependency>
  • ```

Suggested about 2 months ago by hkotsubo‭