ScheduledExecutorService task that blocks for longer than its run interval

Question about ScheduledExecutorService.shceduleAtFixedRate - I schedule taskA to run every 500 millis, which blocks for 1000 millis. Now subsequent executions aren't gonna wait the extra 500 millis, but rather commence immediately after the previous one.

taskA acquires an intrinsic lock, which is also (attempted) acquired by a different thread. Since intrinsic locks have no fairness guarantees this thread is running a risk of starvation, so here's my question: Is there a good/clean way to avoid this risk? E.g. schedule the task to run every 1500 millis (doesn't sound very waterproof)? Or do we expect the lock acquisition to exhibit a kind of "amortized fairness"?

Answer:1

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