Java→Kotlin化メモ

起動時エラー

kotlin_module is a duplicate but no duplicate handling strategy has been set. Please refer to https://docs.gradle.org/7.4/dsl/org.gradle.api.tasks.Copy.html#org.gradle.api.tasks.Copy:duplicatesStrategy for details.

対応

build.gradle.kts

jar {
    duplicatesStrategy = DuplicatesStrategy.INCLUDE
}

gradle build error

xecution failed for task ':compileJava'.
java.lang.IllegalAccessError: class lombok.javac.apt.LombokProcessor (in unnamed module @0xa5488cf) cannot access class com.sun.tools.javac.processing.JavacProcessingEnvironment (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.processing to unnamed module @0xa5488cf

build.gradle.kts

build.gradle.kts

application {
    tasks.jar {
        duplicatesStrategy = DuplicatesStrategy.INCLUDE
    }
}

@Slf4jが効かない

未サポート

対応

logger.kt

import org.slf4j.Logger
import org.slf4j.LoggerFactory

val Any.log: Logger
    get() = LoggerFactory.getLogger(this.javaClass)

@RequireArgsControllerで用意したコンストラクタインジェクションが効かない

code

@RequireArgsController
class XYZ {
    private val context: ApplicationContext? = null
}

対応

アノテーションを削除。
手組みのコンストラクタへ引っ越し。

constructor(private val context: ApplicationContext)