加锁 同时(shí )队列可(kě )以无限长吗 什么时(shí )候消减,同时采用了弱(ruò )引(yǐn )用避(bì )免队列过大(dà ),造(zào )成gc压(yā )力 源码如下(xià )get recycle scavenge每次都(dōu )是从(cóng )head节(jiē )点获(huò )取,如(rú )果获(huò )取(qǔ )不到就(jiù )next,这些队列(liè )并(bìng )不(bú )删(shān )除,jvm会(huì )自动在内存不够的时候(hòu )删(shān )除(chú )
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