加锁 同(tóng )时(shí )队列可(kě )以无限长吗 什么(me )时候消减,同时(shí )采用(yòng )了弱引用避(bì )免(miǎn )队(duì )列(liè )过(guò )大,造成gc压力 源(yuán )码如下get recycle scavenge每次都是从(cóng )head节点(diǎn )获取,如果获取不(bú )到就(jiù )next,这(zhè )些队列(liè )并不(bú )删除(chú ),jvm会自动在内存不够(gòu )的时(shí )候删(shān )除
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