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加锁(suǒ ) 同(tóng )时队列可以(yǐ )无限长吗(ma ) 什(shí )么时(shí )候消减(jiǎn ),同时(shí )采用了(le )弱引用避免队(duì )列(liè )过大,造成(chéng )gc压力 源码(mǎ )如(rú )下get recycle scavenge每次都(dōu )是从head节点获取,如果获取(qǔ )不到(dào )就next,这些队(duì )列并(bìng )不删除,jvm会(huì )自(zì )动在(zài )内存(cún )不(bú )够(gòu )的时(shí )候删除

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