الإيقاف ومعالجة الأخطاء

في هذا الدرس

stop pools cleanly and not lose failures.

الموضوعات المخطط لها

• shutdown() stops accepting tasks and lets queued ones finish; shutdownNow() interrupts workers.
• Pattern: shutdown(), awaitTermination(timeout), then shutdownNow().
• Non-daemon pool threads keep the JVM alive if you never shut down.
• Tasks given to execute that throw print to the thread's uncaught handler; with submit the exception hides inside the Future until get().
• Always log or collect failures.