Boolean property setter is skipped if name isX prefixed

[IceBlizz6]

Search before asking

• [X] I searched in the issues and found nothing similar.
• [X] I searched in the issues of databind and other modules used and found nothing similar.
• [X] I have confirmed that the problem only occurs when using Kotlin.

Describe the bug

Jackson will not call property setter for boolean properties if the name is prefixed with isX. Value is still assigned, which makes me suspect that it is assigning value to the backing field directly instead.

To Reproduce

import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
import com.fasterxml.jackson.module.kotlin.readValue
import org.junit.Assert
import org.junit.Test

class ReadTest {
    class Dummy {
        var isAlive: Boolean? = null
            set(value) {
                field = value
                setterUsed = true
            }

        var setterUsed = false
    }

    @Test
    fun readPrefixedValueTest() {
        val objectMapper = jacksonObjectMapper()
        val dummy = objectMapper.readValue<Dummy>("{ \"isAlive\": true }")
        Assert.assertTrue(dummy.setterUsed)
    }
}

Expected behavior

When running the reproduction case then the test should succeed. The setter of isAlive property should be called.

Versions

Kotlin: 1.9.23 Jackson-module-kotlin: 2.17.1

Additional context

No response

[k163377]

Confirmed. The KotlinModule does not currently assume deserialization using setter, which seems to be a missing feature. https://github.com/FasterXML/jackson-module-kotlin/blob/c0457486720ffa4318e5d8acd63e758e160cf24b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinNamesAnnotationIntrospector.kt#L66-L71

Since implementation is undecided, please use a workaround such as JsonProperty.

[IceBlizz6]

Thank you for your response.

Is there hope for a real solution on this in the future? (other than the workaround)

[AnneMayor]

I am also curious if this feature could be released for some day.

[k163377]

At least I don't have time to work on it.