加(jiā )锁 同时队列可以无限(xiàn )长(zhǎng )吗 什(shí )么(me )时候消(xiāo )减,同(tóng )时(shí )采(cǎi )用(yòng )了弱(ruò )引用避免队列过大,造成gc压力 源(yuán )码如(rú )下get recycle scavenge每次都是从(cóng )head节(jiē )点获取,如果获取(qǔ )不到(dào )就next,这(zhè )些队列并不删除(chú ),jvm会(huì )自(zì )动在内存不够的(de )时候删除
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