加(jiā )锁 同时队列可以无(wú )限长吗 什(shí )么(me )时(shí )候消减,同时采用了(le )弱引用避(bì )免队列过大,造成gc压力 源码(mǎ )如(rú )下get recycle scavenge每(měi )次都是从(cóng )head节点(diǎn )获取,如果获(huò )取(qǔ )不(bú )到就next,这些(xiē )队(duì )列并不删除,jvm会(huì )自(zì )动在(zài )内存不够的时(shí )候删除
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