加锁 同时队列可以无限长吗 什(shí )么(me )时候消(xiāo )减(jiǎn ),同时采(cǎi )用(yòng )了(le )弱(ruò )引用避(bì )免队列过大(dà ),造(zào )成gc压(yā )力 源码如下(xià )get recycle scavenge每次都是(shì )从(cóng )head节点获(huò )取,如果获(huò )取不(bú )到就next,这(zhè )些队(duì )列(liè )并(bìng )不删除,jvm会自动(dòng )在内存不够的时候删除(chú )
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