Java Concurrency Deep Dive

Discuss the fundamental approaches to managing concurrency in Java. Your explanation should encompass:

• Core Concurrency Primitives: Compare and contrast the use cases, advantages, and disadvantages of:

  • Raw Threads
  • The Executor Framework
  • synchronized blocks and methods
  • Explicit Lock implementations (e.g., ReentrantLock)
  • Atomic Variables (e.g., AtomicInteger, AtomicReference)
  • Concurrent Collections (e.g., ConcurrentHashMap, CopyOnWriteArrayList)
  • Futures and CompletableFuture

• Concurrency Hazards and Mitigation: Explain common concurrency issues and demonstrate techniques to prevent or resolve them. Specifically address:

  • Race Conditions
  • Deadlocks
  • Starvation

Provide concrete examples or scenarios to illustrate your points for each primitive and hazard mitigation technique.