class User(val name: String, val isAdmin: Boolean)

Lint Failure
../../../core: Unexpected failure during lint analysis (this is a bug in lint or one of the libraries it depends on)

KotlinReflectionInternalError:KClassImpl.reportUnresolvedClass(KClassImpl.kt:301)
←KClassImpl.access$reportUnresolvedClass(KClassImpl.kt:42)
←KClassImpl$Data$descriptor$2.invoke(KClassImpl.kt:52)
←KClassImpl$Data$descriptor$2.invoke(KClassImpl.kt:43)
←ReflectProperties$LazySoftVal.invoke(ReflectProperties.java:93)
←ReflectProperties$Val.getValue(ReflectProperties.java:32)
←KClassImpl$Data.getDescriptor(KClassImpl.kt:-1)
←KClassImpl.getDescriptor(KClassImpl.kt:172)

You can set environment variable LINT_PRINT_STACKTRACE=true to dump a full stacktrace to stdout.

@JsonCreator

data class SID(
        @Pattern(regexp="[0-9a-zA-Z]{1,50}", message = "Недопустимые символы в SID")
        val sid: String
) {
    override fun toString(): String {
        return sid
    }
}

{
  "sid": "qweasdzxc",
  "date": 1537893098
}

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `SID` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('qweasdzxc')
 at [Source: (String)"{
    "sid":"qweasdzxc",
    "date":1537893098,
...

.

was expecting comma to separate Array entries

"

import com.fasterxml.jackson.annotation.JsonUnwrapped
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.kotlin.KotlinModule
import org.assertj.core.api.Assertions.assertThat
import org.junit.jupiter.api.Test

data class Container(@JsonUnwrapped val row: Map<String, Any?>)

class JsonUnwrappedTest {

    @Test
    fun `should unwrap`() {
        val row = Container(row = mapOf("foo" to "bar"))

        val objectMapper = ObjectMapper()
        objectMapper.registerModule(KotlinModule())

        val json = objectMapper.writeValueAsString(row)
        assertThat(json).isEqualTo("""{"foo": "bar"}""") // fails
    }
}

object

JsonSubTypes.Type

com.fasterxml.jackson.databind.exc.MismatchedInputException: Expected array or string.
 at [Source: (StringReader); line: 5, column: 19] (through reference chain: org.example.battery_info.cli_client.BatteryInfoResult["batteryInfoList"]->java.lang.Object[][0]->org.example.battery_info.cli_client.model.http.BatteryInfo["timestamp"])

open class Animal(@JsonProperty("id") val id: Long,
                  @JsonProperty("name")val name: String)

class Dog (id: Long,
           name: String,
           @JsonProperty("favorite_toy")val favoriteToy: String) : Animal(id, name)

fun main () {
    val json = configuredObjectMapper()
            .writeValueAsString(Dog(1, "FIDO", "something"))
    println(json)

    val a =
            configuredObjectMapper().readValue(json, Dog::class.java)
    println("${a.id} ${a.name} ${a.favoriteToy}")


}

internal

propertyname$modulename

@JsonIgnore

@JsonValue

String

data class Example(@JsonValue val value: String)

value

Exception in thread "main" java.lang.ClassCastException: class java.util.LinkedHashMap cannot be cast to class com.Foo (java.util.LinkedHashMap is in module java.base of loader 'bootstrap'; com.Foo is in unnamed module of loader 'app')

@JsonDeserialize(using = FirestoreTimestampDeserializer::class)

data class AAA(val list: List[String])