加锁 同时(shí )队列(liè )可以无限长(zhǎng )吗 什(shí )么时(shí )候(hòu )消(xiāo )减,同时(shí )采(cǎi )用了弱引用避(bì )免(miǎn )队(duì )列过大,造成(chéng )gc压(yā )力(lì ) 源码如下get recycle scavenge每次都(dōu )是从head节(jiē )点(diǎn )获取(qǔ ),如果获取不到就next,这些(xiē )队列并不(bú )删除,jvm会自动在内(nèi )存不(bú )够(gòu )的时候删除
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