This input can never come and thus the join will wait forever for the missing input and will not execute-an obvious deadlock situation.

此输入将永远不会出现，因此join将一直等待缺少的输入而无法执行。在此情况下，很明显会发生死锁。

youdao

I said I will never wait for you, but I will wait for you forever.

我说再也不等你了，却等了你一辈子。

youdao

I never stayed anywhere, I'm the wind in the trees, I would wait for you forever.

天涯海角无处停留，我只是穿越树丛的一屡微风，我仍在孤寂的街口等着你。

youdao