加锁 同(tóng )时队(duì )列可以无限长吗 什(shí )么时候消减,同(tóng )时(shí )采(cǎi )用了弱(ruò )引(yǐn )用避(bì )免队列过(guò )大(dà ),造成gc压(yā )力 源(yuán )码如下get recycle scavenge每次(cì )都是(shì )从head节点(diǎn )获(huò )取(qǔ ),如果获取(qǔ )不(bú )到(dào )就next,这些队列(liè )并不删除,jvm会自动在内存不够的时候(hòu )删除
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