加锁 同(tóng )时队(duì )列(liè )可(kě )以无限长(zhǎng )吗 什么时(shí )候消减(jiǎn ),同时采(cǎi )用了弱引用避(bì )免(miǎn )队列过大(dà ),造成gc压力 源(yuán )码(mǎ )如下get recycle scavenge每次都是从(cóng )head节(jiē )点获取,如果获(huò )取不到就next,这(zhè )些(xiē )队列并(bìng )不(bú )删(shān )除(chú ),jvm会自动在(zài )内存不(bú )够的(de )时(shí )候删除
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