有一個 API 網關使用 lambda 代理調用 lambda 函數。記錄以下工作正常的身體并將身體發回：package com.dapper.cloud.function;import java.util.Map;import com.amazonaws.services.lambda.runtime.Context;import com.amazonaws.services.lambda.runtime.RequestHandler;import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;public class GrantJwt implements RequestHandler<Map<String, Object>, APIGatewayProxyResponseEvent>{     @Override    public APIGatewayProxyResponseEvent handleRequest(Map<String, Object> input, Context context){        System.out.println(input.get("body").toString());        return new APIGatewayProxyResponseEvent().withStatusCode(200).withBody(input.get("body").toString());    }} 當我更新它以使用ObjectMapper這樣的方式時：package com.dapper.cloud.function;import java.util.Map;import com.amazonaws.services.lambda.runtime.Context;import com.amazonaws.services.lambda.runtime.RequestHandler;import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;import com.fasterxml.jackson.databind.ObjectMapper;public class GrantJwt implements RequestHandler<Map<String, Object>, APIGatewayProxyResponseEvent>{     @Override    public APIGatewayProxyResponseEvent handleRequest(Map<String, Object> input, Context context){        ObjectMapper m = new ObjectMapper();        System.out.println(input.get("body").toString());        return new APIGatewayProxyResponseEvent().withStatusCode(200).withBody(input.get("body").toString());    }} 日志不顯示正文，響應是：{    "message": "Internal server error"}我可以在 AWS Lambda 中使用 Jackson 嗎？父POM<dependencies>    <dependency>        <groupId>junit</groupId>        <artifactId>junit</artifactId>        <version>4.12</version>        <scope>test</scope>    </dependency>    <dependency>        <groupId>com.amazonaws</groupId>        <artifactId>aws-lambda-java-core</artifactId>        <version>1.2.0</version>    </dependency>