// Module 11 — Java & Enterprise

Java Programming & Enterprise Architecture
JVM · Spring Boot · Microservices

Under the hood of the JVM, Spring Boot, and microservices. Build scalable systems, master concurrency, and deploy resilient cloud-native backends used by elite enterprise teams.

StackJava 21 · Spring Boot 3 · K8s
FocusConcurrency & Scale
Milestones6 Labs
OutcomeLive Microservices Backend
TimelineMilestones: 6
JVM InternalsOOP & PatternsConcurrencySpring BootMicroservicesTest & CI/CD

// Lab Roadmap — Hands-on Session View

Module Flow

JVM → Spring → Cloud

6 Deep Labs
Lab 01Phase 1

JVM Architecture — Memory & GC

  • Live application profiling
  • Heap dump analysis
  • GC parameter tuning
  • Memory leak diagnosis
Lab01
Lab 02Phase 2

OOP & Design Patterns

  • Monolith refactor exercises
  • Factory, Singleton, Strategy
  • Decoupled module design
  • SOLID applied
Lab02
Lab 03Phase 3

Concurrency & Multithreading API

  • High-throughput scraper
  • Executors & ThreadPools
  • CompletableFuture chains
  • Non-blocking patterns
Lab03
Lab 04Phase 4

Spring Boot — DI & Data JPA

  • Secure RESTful e-commerce API
  • Spring Data JPA repositories
  • PostgreSQL integration
  • Validation & auditing
Lab04
Lab 05Phase 5

Enterprise Microservices

  • Eureka discovery server
  • Spring Cloud Gateway
  • Resilience4j circuit breakers
  • Distributed tracing
Lab05
Lab 06Phase 6

Unit Testing & CI/CD — Mockito & Docker

  • 90%+ coverage with JUnit 5
  • Mockito test doubles
  • Dockerized containers
  • Automated deploy pipelines
Lab06