Serverless Java container 
The aws-serverless-java-container makes it easy to run Java applications written with frameworks such as Spring, Spring Boot, Apache Struts, Jersey, or Spark in AWS Lambda.
Serverless Java Container natively supports API Gateway's proxy integration models for requests and responses, you can create and inject custom models for methods that use custom mappings.
Follow the quick start guides in our wiki to integrate Serverless Java Container with your project:
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Micronaut documentation and demo
Below is the most basic AWS Lambda handler example that launches a Spring application. You can also take a look at the samples in this repository, our main wiki page includes a step-by-step guide on how to deploy the various sample applications using Maven and SAM.
public class StreamLambdaHandler implements RequestStreamHandler {
private static SpringLambdaContainerHandler<AwsProxyRequest, AwsProxyResponse> handler;
static {
try {
handler = SpringLambdaContainerHandler.getAwsProxyHandler(PetStoreSpringAppConfig.class);
} catch (ContainerInitializationException e) {
// if we fail here. We re-throw the exception to force another cold start
e.printStackTrace();
throw new RuntimeException("Could not initialize Spring framework", e);
}
}
@Override
public void handleRequest(InputStream inputStream, OutputStream outputStream, Context context)
throws IOException {
handler.proxyStream(inputStream, outputStream, context);
}
}
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