加锁(suǒ ) 同时(shí )队(duì )列可以无限(xiàn )长(zhǎng )吗(ma ) 什(shí )么(me )时(shí )候消减,同时采(cǎi )用了(le )弱引用避免队列过(guò )大,造成gc压力 源(yuán )码(mǎ )如下get recycle scavenge每(měi )次都是从(cóng )head节点(diǎn )获取,如果获(huò )取不到(dào )就next,这些(xiē )队列并不(bú )删除,jvm会自动在内存不(bú )够的时(shí )候删(shān )除
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