加锁 同(tóng )时(shí )队列可以(yǐ )无限(xiàn )长吗 什(shí )么(me )时候消减,同(tóng )时采用了弱引(yǐn )用避免(miǎn )队(duì )列过大,造成(chéng )gc压力 源码(mǎ )如(rú )下get recycle scavenge每次都是(shì )从(cóng )head节点获(huò )取,如果获取不(bú )到就(jiù )next,这些队列并不(bú )删除(chú ),jvm会(huì )自动在(zài )内(nèi )存(cún )不够的时候删除
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