Instant -> Timestamp not converted.

[wirekang]

Is there are additional steps to do?

message Foo {
    // ...
    google.protobuf.Timestamp modified_at = 4;
}

data class FooDto(
    // ...
    val modifiedAt: Instant,
)

@Mapper(
    config = GrpcDtoMapperConfig::class,
)
interface AdminDbDtoMapper {
    fun map(src: FooDto): Foo
}

@MapperConfig(
    nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.IGNORE,
    nullValueCheckStrategy = NullValueCheckStrategy.ALWAYS,
    collectionMappingStrategy = CollectionMappingStrategy.ADDER_PREFERRED,
    unmappedSourcePolicy = ReportingPolicy.ERROR,
    unmappedTargetPolicy = ReportingPolicy.ERROR,
)
interface GrpcDtoMapperConfig

plugins {
    id("org.springframework.boot") version "3.0.2"
    id("io.spring.dependency-management") version "1.1.0"
    kotlin("jvm") version "1.8.10"
    kotlin("plugin.spring") version "1.8.10"
    kotlin("plugin.jpa") version "1.8.10"
    kotlin("plugin.allopen") version "1.8.10"
    kotlin("kapt") version "1.8.10"
}


// ...

kapt {
    arguments {
        arg("mapstruct.defaultComponentModel", "spring")
    }
}


dependencies {
    implementation("org.mapstruct:mapstruct:1.5.3.Final")
    kapt("org.mapstruct:mapstruct-processor:1.5.3.Final")
    kapt("no.entur.mapstruct.spi:protobuf-spi-impl:1.42")

    // ...

Error

foo.java:22: error: Can't map property "Instant ..modifiedAt" to "Timestamp ..modifiedAt". Consider to declare/implement a mapping method: "Timestamp map(Instant value)"..                                                                     

[zankich]

You need to add implementation 'no.entur.mapstruct.spi:protobuf-support-standard:1.44' to your build.gradle and extend your mapper with ProtobufStandardMappings