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kotlinlang

```listOf(
    Person(
        name = "foo",
        age = 44,
        fooBar = "lol",
        isImportant = true,
        isNew = true
    )
)
```
Why does this get serialized into json as `[{"id":null,"name":"foo","age":44,"fooBar":"lol","new":true,"important":true}]` ?
I.e. missing the `is` prefixes?

What's even worse is when I try to deserialize the same json that was just serialized, I'll get errors.

Broken by default

jackson is mainly based on java convention, `isXXX` is the default getter method name for boolean (thanks Jakub, stealing your edit), it should work with

```listOf(
    Person(
        name = "foo",
        age = 44,
        fooBar = "lol",
        important = true,
        new = true
    )
)```

I assume getter (and setter) convention in java world for boolean properties.

another option you have a bad `ObjectMapper` configuration, how are you creating it <@U9DPCUAB0>? if you have something like
```@Bean
fun objectMapper() = ObjectMapper()```
you should amend that; my personal preference is to configure the mapper spring already creates for you, if you prefer to create a new one ensure kotlin module is configured
```@Bean
fun objectMapper() = ObjectMapper().findAndRegisterModule()

/* or, but I prefer the above one since jackson will scan your classpath and is smart to configure what it needs
@Bean
fun objectMapper() = jacksonObjectMapper() //this is a kotlin extension funtion
*/```
with a "correct" object mapper, `isImportant` and `isNew` work as you expect