Aws Lambda Java Integration

Solid foundation for getting Java running on Lambda without the usual multi-second cold start pain. Covers both Micronaut (sub-1s with DI) and raw Java (sub-500ms minimal) approaches with actual handler examples and deployment configs for Serverless Framework and SAM. The connection management patterns are the real value here, showing you how to initialize AWS clients once as static fields instead of recreating them per invocation. Includes the deployment YAMLs you actually need and warns you about the Java-specific gotchas like classpath scanning and oversized JARs. If you're stuck choosing between framework convenience and cold start performance for a serverless Java project, this gives you both paths with realistic numbers.