加锁 同时队列可以无(wú )限长(zhǎng )吗 什(shí )么(me )时(shí )候(hòu )消(xiāo )减,同时采用了弱引用避(bì )免队列(liè )过大,造成gc压力 源(yuán )码如下get recycle scavenge每次都是从head节(jiē )点获取,如果获取不(bú )到就next,这些(xiē )队列(liè )并不(bú )删(shān )除(chú ),jvm会(huì )自(zì )动在内存(cún )不(bú )够(gòu )的时候删(shān )除
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