加锁 同(tóng )时队列可以(yǐ )无(wú )限长吗(ma ) 什么(me )时候消减,同(tóng )时(shí )采(cǎi )用(yòng )了弱引用避免队列(liè )过大,造成gc压力 源码如下get recycle scavenge每次(cì )都(dōu )是从head节(jiē )点(diǎn )获取,如果获取(qǔ )不到就(jiù )next,这些队列并(bìng )不删(shān )除(chú ),jvm会自动在内存(cún )不够的时候(hòu )删除(chú )
Copyright © 2008-2018