加锁 同时队(duì )列(liè )可以(yǐ )无限(xiàn )长吗 什么(me )时(shí )候消(xiāo )减(jiǎn ),同时采(cǎi )用了弱引用(yòng )避免队列过大(dà ),造成(chéng )gc压(yā )力 源码如(rú )下get recycle scavenge每次都是(shì )从(cóng )head节点(diǎn )获取,如果获取不到就next,这(zhè )些队(duì )列(liè )并不删除,jvm会(huì )自动在内存(cún )不(bú )够的时候删除
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