加锁 同时(shí )队列(liè )可(kě )以无限(xiàn )长吗 什么时(shí )候消(xiāo )减,同时(shí )采用(yòng )了弱(ruò )引用避免队列过大,造(zào )成gc压力 源码(mǎ )如下(xià )get recycle scavenge每次都是从(cóng )head节(jiē )点(diǎn )获取,如果(guǒ )获取不到(dào )就(jiù )next,这些队列并不删(shān )除(chú ),jvm会(huì )自动在内存不够的(de )时(shí )候删除
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