加(jiā )锁(suǒ ) 同时队列(liè )可以无(wú )限长(zhǎng )吗 什(shí )么(me )时(shí )候消减,同时采用了弱(ruò )引用避免队列过(guò )大,造成gc压(yā )力 源码如下get recycle scavenge每次都(dōu )是从(cóng )head节(jiē )点获(huò )取(qǔ ),如(rú )果获取不到就next,这些(xiē )队列(liè )并(bìng )不删除,jvm会自(zì )动在内存(cún )不够的时(shí )候删除(chú )
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