加锁 同(tóng )时队(duì )列可以无(wú )限长吗 什么(me )时(shí )候(hòu )消(xiāo )减,同(tóng )时采用了弱引(yǐn )用避免队列过大,造成gc压(yā )力 源码如(rú )下get recycle scavenge每(měi )次都(dōu )是从head节点获取(qǔ ),如果(guǒ )获取不(bú )到就next,这些(xiē )队(duì )列并不删除,jvm会自动(dòng )在(zài )内存(cún )不够(gòu )的时候(hòu )删(shān )除(chú )
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