加锁 同时队列(liè )可以无限(xiàn )长吗 什(shí )么时候(hòu )消减,同(tóng )时(shí )采用了弱引用(yòng )避(bì )免队(duì )列过(guò )大,造成gc压力 源码如(rú )下get recycle scavenge每(měi )次都(dōu )是从head节点(diǎn )获(huò )取,如(rú )果获取(qǔ )不到就next,这(zhè )些队(duì )列并(bìng )不删除,jvm会自(zì )动在内(nèi )存不够的时(shí )候删(shān )除
Copyright © 2008-2018