加(jiā )锁 同时队列可以无(wú )限长(zhǎng )吗 什(shí )么(me )时候消减,同(tóng )时采(cǎi )用了弱(ruò )引(yǐn )用(yòng )避免队列过(guò )大(dà ),造(zào )成(chéng )gc压力 源(yuán )码如下get recycle scavenge每次都(dōu )是从head节点获取(qǔ ),如果获(huò )取(qǔ )不到就next,这些队列并不(bú )删除(chú ),jvm会自动(dòng )在内(nèi )存(cún )不够的时(shí )候删(shān )除
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