このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
lambda jar too big
対処
関連リンク
How to reduce the size of AWS Lambda code written in JAVA in ...
https://stackoverflow.com/questions/36750638/how-to-reduce-the-size-of-aws-lambda-code-written-in-ja・・・
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https://stackoverflow.com/questions/46943897/aws-lambda-classnotfoundexception
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https://stackoverflow.com/questions/44362075/aws-lambda-function-in-java
What is the optimal way to deploy Java AWS Lambda?
https://stackoverflow.com/questions/33243882/what-is-the-optimal-way-to-deploy-java-aws-lambda
Maven Deployment package and upload to AWS-Lambda
https://stackoverflow.com/questions/36113034/maven-deployment-package-and-upload-to-aws-lambda
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https://docs.aws.amazon.com/ja_jp/lambda/latest/dg/limits.html
AWS Lambda Limits - AWS Lambda - AWS Documentation
https://docs.aws.amazon.com/lambda/latest/dg/limits.html
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https://docs.aws.amazon.com/lambda/latest/dg/best-practices.html
Function Code
https://docs.aws.amazon.com/lambda/latest/dg/best-practices.html#function-code
Function Configuration
https://docs.aws.amazon.com/lambda/latest/dg/best-practices.html#function-configuration