تفريغات الخيوط

في هذا الدرس

capture and read dumps for blocked or starved threads.

الموضوعات المخطط لها

• Capture: jcmd <pid> Thread.print (or jstack); take 3 dumps a few seconds apart.
• Each thread shows state, stack, locks held and waited for.
• Many threads BLOCKED on one monitor means lock contention; the owner is named.
• Pool threads all parked and a queue growing means starvation.
• Dumps flag deadlocks explicitly.