加(jiā )锁 同时队列可(kě )以无(wú )限长(zhǎng )吗 什么时(shí )候消减,同时采用了(le )弱引用避(bì )免队(duì )列过大,造(zào )成gc压(yā )力 源码如下get recycle scavenge每次都是(shì )从(cóng )head节点(diǎn )获取,如果(guǒ )获取不到就next,这些队(duì )列(liè )并(bìng )不删(shān )除(chú ),jvm会自动在内存(cún )不(bú )够的时候删(shān )除(chú )
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