加锁 同时(shí )队列可(kě )以无限长吗(ma ) 什(shí )么时候消减,同(tóng )时(shí )采(cǎi )用(yòng )了弱(ruò )引用避免(miǎn )队(duì )列过大,造(zào )成(chéng )gc压力(lì ) 源码如下get recycle scavenge每次都是从head节(jiē )点获取,如果获取(qǔ )不到就next,这(zhè )些队(duì )列并不删除(chú ),jvm会自动在内存不够的时(shí )候(hòu )删(shān )除
Copyright © 2008-2018