加锁 同时队(duì )列可以无(wú )限(xiàn )长吗 什(shí )么时候消减,同时(shí )采用(yòng )了(le )弱引用避(bì )免(miǎn )队(duì )列过大,造成(chéng )gc压(yā )力 源(yuán )码如下get recycle scavenge每次都是从head节点(diǎn )获取,如果获取(qǔ )不(bú )到(dào )就next,这些(xiē )队(duì )列并(bìng )不删除,jvm会自动在内存不够(gòu )的(de )时候(hòu )删除
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