加锁 同时(shí )队(duì )列可(kě )以无(wú )限长(zhǎng )吗 什么(me )时候消减,同时采用了弱引(yǐn )用(yòng )避(bì )免队列过(guò )大,造成gc压力 源码(mǎ )如下get recycle scavenge每次都是从head节(jiē )点获取,如果获(huò )取(qǔ )不到就(jiù )next,这些(xiē )队(duì )列并(bìng )不删除,jvm会自动在内存不(bú )够的时(shí )候(hòu )删(shān )除
Copyright © 2008-2018