加(jiā )锁 同(tóng )时队列可以(yǐ )无限长(zhǎng )吗 什么时(shí )候(hòu )消减,同时采用了弱引(yǐn )用(yòng )避免(miǎn )队列过大,造成(chéng )gc压(yā )力 源(yuán )码如下get recycle scavenge每次都(dōu )是从head节点获(huò )取(qǔ ),如(rú )果获(huò )取不(bú )到就next,这些队列并不删(shān )除,jvm会(huì )自动(dòng )在(zài )内存不(bú )够的时候删除
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