Serverless example deploy error "com/jrestless/aws/gateway/handler/GatewayRequestObjectHandle"

Error Calling Sample Lambda Function:
Error loading class com/jrestless/aws/gateway/handler/GatewayRequestObjectHandler: java.lang.NoClassDefFoundError
Would you help me?
I’m following the steps but I can not create the “jar” with all the libraries with the commands below, I lost something?
git clone
cd jrestless-examples
./gradlew build
cd aws/gateway/aws-gateway-usage-example
serverless deploy
serverless logs -f “sample” -t # if you want to tail the logs