Void failed (Throwable e, a attachment) executes if the task fails to complete due to Throwable e.

voidfailed (Throwablee,a attachment)在任务由于Throwable e而失败时执行。

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Void failed (Throwable e, a attachment) executes if the task fails to complete due to Throwable e.

voidfailed (Throwablee,a attachment)在任务由于Throwable e而失败时执行。

youdao