加(jiā )锁 同时(shí )队列可(kě )以无限(xiàn )长(zhǎng )吗 什么(me )时候消(xiāo )减(jiǎn ),同时(shí )采用了(le )弱引用避免队列过大(dà ),造(zào )成gc压力 源码(mǎ )如下(xià )get recycle scavenge每次都是(shì )从head节点获取(qǔ ),如果获取不到就next,这(zhè )些队(duì )列并不(bú )删(shān )除,jvm会(huì )自动(dòng )在内存不够(gòu )的时候删(shān )除(chú )
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