加锁 同(tóng )时(shí )队(duì )列可以(yǐ )无限长(zhǎng )吗 什么时候消减(jiǎn ),同时(shí )采用(yòng )了(le )弱引用(yòng )避免队列过大(dà ),造成gc压力 源(yuán )码如下(xià )get recycle scavenge每次都是从(cóng )head节(jiē )点获取,如果获取不到就next,这(zhè )些队(duì )列并不(bú )删(shān )除,jvm会自(zì )动在(zài )内存不够的时候(hòu )删除
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