加锁 同时队列可(kě )以无限长(zhǎng )吗 什(shí )么时(shí )候(hòu )消减(jiǎn ),同时采用(yòng )了(le )弱(ruò )引用(yòng )避免(miǎn )队列过(guò )大,造(zào )成gc压力 源码如下get recycle scavenge每次都是从head节点获取,如(rú )果获取不(bú )到就next,这些队列并不删(shān )除(chú ),jvm会(huì )自动(dòng )在(zài )内存不够(gòu )的时(shí )候删(shān )除
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