加锁 同(tóng )时队(duì )列(liè )可以(yǐ )无限长吗 什(shí )么时候消减(jiǎn ),同(tóng )时(shí )采用(yòng )了弱(ruò )引(yǐn )用避免(miǎn )队列过大(dà ),造成gc压(yā )力 源码如下get recycle scavenge每(měi )次都(dōu )是从head节点获取(qǔ ),如(rú )果获取(qǔ )不到就(jiù )next,这些队(duì )列并不删除(chú ),jvm会自动在(zài )内存不够的时(shí )候删除(chú )
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