加(jiā )锁 同时队列可以无(wú )限(xiàn )长吗 什么(me )时候消减(jiǎn ),同时采用(yòng )了(le )弱引用避(bì )免(miǎn )队(duì )列过大,造成gc压(yā )力 源码如(rú )下(xià )get recycle scavenge每次都(dōu )是从head节点获(huò )取,如(rú )果获取不(bú )到就next,这些队列并不删(shān )除,jvm会自(zì )动在内存不(bú )够的时(shí )候删除
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