加锁 同时队(duì )列可以无(wú )限长吗 什(shí )么(me )时(shí )候消减(jiǎn ),同(tóng )时采用了(le )弱引用避免队列过大,造(zào )成gc压力 源码(mǎ )如(rú )下(xià )get recycle scavenge每次都是(shì )从head节点(diǎn )获(huò )取,如(rú )果获取不(bú )到就next,这些(xiē )队列(liè )并不删除,jvm会自(zì )动在(zài )内(nèi )存(cún )不够的时候删除
Copyright © 2008-2018