加锁 同时队列可以无限长吗(ma ) 什(shí )么时(shí )候消(xiāo )减,同时采用(yòng )了(le )弱引用避(bì )免(miǎn )队(duì )列过大,造(zào )成(chéng )gc压(yā )力 源码如(rú )下get recycle scavenge每次都是从(cóng )head节(jiē )点获取,如(rú )果获取(qǔ )不到就next,这些队(duì )列并不删除(chú ),jvm会(huì )自动在(zài )内存(cún )不(bú )够的(de )时候删除
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