Thank you. It works now! Johan Stuyts <johanstu...@squins.com> 於 2025年3月18日 週二 上午12:13寫道： > > The way code for lambdas is generated was changed in 2.0. You have to switch > back to the legacy implementation : > https://kotlinlang.org/docs/whatsnew20.html#generation-of-lambda-functions-using-invokedynamic > > In your build.gradle.kts: > > tasks.withType<KotlinCompile> { > compilerOptions { > freeCompilerArgs = listOf(<any other options that you need>, > "-Xlambdas=class") > } > } > > > Op Mon, 17 Mar 2025 11:46:48 +0100 schreef smallufo <small...@gmail.com>: > > > private val nameField: TextField<String> = TextField("name", > > model.flatMap { m -> LambdaModel.of( { m.name }, { m.name = it } ) }) > > > > (with wicket 10) > > The old code works well with Kotlin 1.9 > > But after upgrading kotlin to 2.x > > > > It shows exception : > > private java.lang.Object > > org.apache.wicket.MarkupContainer.children[write:1] > > [class=org.apache.wicket.markup.html.form.TextField, path=3:form:name] > > java.lang.Object org.apache.wicket.Component.data > > [class=java.lang.Object] final > > org.danekja.java.util.function.serializable.SerializableFunction > > org.apache.wicket.model.IModel$4.val$mapper [class=java.lang.Object] > > > > It seems Kotlin 2 no longer produce serializable lambda. > > I tried these ways : > > > > class SerializableLambdaModel<T>( > > private val getter: () -> T, > > private val setter: (T) -> Unit > > ) : IModel<T>, java.io.Serializable { > > > > override fun getObject(): T = getter() > > > > override fun setObject(value: T) { > > setter(value) > > } > > > > override fun detach() { > > } > > } > > not working > > > > and this > > > > class SerializableLambdaModel<T>( > > getter: () -> T, > > setter: (T) -> Unit > > ) : IModel<T>, java.io.Serializable { > > > > private val getterFunc: () -> T = object : java.io.Serializable { > > override fun toString(): String = getter().toString() > > fun get(): T = getter() > > } > > > > private val setterFunc: (T) -> Unit = object : java.io.Serializable { > > fun set(value: T) = setter(value) > > } > > > > override fun getObject(): T = getterFunc.get() > > > > override fun setObject(value: T) { > > setterFunc.set(value) > > } > > > > override fun detach() {} > > } > > > > and this > > > > import org.apache.wicket.model.IModel > > import java.io.Serializable > > > > class SerializableLambdaModel<T : Any?>( > > private val getter: () -> T, > > private val setter: (T) -> Unit > > ) : IModel<T>, Serializable { > > > > private val getterFunc: SerializableFunction0<T> = > > SerializableFunction0(getter) > > private val setterFunc: SerializableFunction1<T> = > > SerializableFunction1(setter) > > > > override fun getObject(): T { > > return getterFunc.invoke() > > } > > > > override fun setObject(value: T) { > > setterFunc.invoke(value) > > } > > > > override fun detach() { > > } > > > > private class SerializableFunction0<T>(private val function: () -> > > T) : () -> T, Serializable { > > override fun invoke(): T = function() > > } > > > > private class SerializableFunction1<T>(private val function: (T) > > -> Unit) : (T) -> Unit, Serializable { > > override fun invoke(value: T) = function(value) > > } > > } > > > > ALL not working , throws the same error > > > > Is there any way to solve this ? > > > > Thanks. > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > > For additional commands, e-mail: users-h...@wicket.apache.org > > > > > > > -- > Best regards / Met vriendelijke groet, > > Johan Stuyts > Squins IT Solutions BV > Oranjestraat 30 > 2983 HS Ridderkerk > The Netherlands > www.squins.com > Chamber of commerce Rotterdam: 24435103 > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org >
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