Quarkus中Kotlin接口搭配@SessionScoped与LangChain4J插件编译失败且丢失对话上下文的问题

最近我在用Kotlin开发基于Quarkus LangChain4J插件的AI Agent，参考官方的入门示例（Java版本）写了代码：给一个接口加上@RegisterAiService和@SessionScoped注解，结果编译直接抛出两个错误：

Managed bean must be a concrete class or @Decorator
Managed bean declaring a passivating scope must be java.io.Serializable

在Java版本的示例里，同样是给接口加@SessionScoped和@RegisterAiService完全没问题，但Kotlin这边就踩了坑。我试着把@SessionScoped注解去掉，编译倒是通过了，但AI Agent完全记不住之前的对话内容——这也在意料之中，因为官方文档明确说@SessionScoped就是用来保留对话记忆、维护上下文的。

以下是我的代码和配置：

我的TestAgent代码 #

package prova.langchainkotlin.test

import io.quarkiverse.langchain4j.RegisterAiService
import jakarta.enterprise.context.SessionScoped

@SessionScoped
@RegisterAiService(modelName = "test-agent")
interface TestAgent {
    // 示例中包含的对话方法（比如）：
    // fun chat(message: String): String
}

pom.xml配置 #

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.acme</groupId>
    <artifactId>langchain_kotlin</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <properties>
        <compiler-plugin.version>3.14.0</compiler-plugin.version>
        <kotlin.version>2.1.21</kotlin.version>
        <maven.compiler.release>21</maven.compiler.release>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
        <quarkus.platform.version>3.23.0</quarkus.platform.version>
        <quarkus.langchain4j.version>0.27.0.CR2</quarkus.langchain4j.version>
        <skipITs>true</skipITs>
        <surefire-plugin.version>3.5.2</surefire-plugin.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>${quarkus.platform.group-id}</groupId>
                <artifactId>${quarkus.platform.artifact-id}</artifactId>
                <version>${quarkus.platform.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-qute</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-rest-jackson</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-rest-client-jackson</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-kotlin</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-arc</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-websockets-next</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-junit5</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-stdlib-jdk8</artifactId>
        </dependency>
        <dependency>
            <groupId>io.rest-assured</groupId>
            <artifactId>kotlin-extensions</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.quarkiverse.langchain4j</groupId>
            <artifactId>quarkus-langchain4j-ollama</artifactId>
            <version>${quarkus.langchain4j.version}</version>
        </dependency>
        <dependency>
            <groupId>io.quarkiverse.langchain4j</groupId>
            <artifactId>quarkus-langchain4j-testing-scorer-junit5</artifactId>
            <version>${quarkus.langchain4j.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>src/main/kotlin</sourceDirectory>
        <testSourceDirectory>src/test/kotlin</testSourceDirectory>
    </build>
</project>

我现在的疑问是：怎么在Kotlin中实现和Java示例一样的效果——既让AI Agent保留对话上下文，又能正常编译通过？有没有办法让Kotlin的接口满足CDI对@SessionScoped bean的要求？

内容来源于stack exchange