加锁 同时队列可(kě )以(yǐ )无(wú )限长(zhǎng )吗 什(shí )么(me )时候消减,同(tóng )时(shí )采用了(le )弱引(yǐn )用避免队(duì )列过大,造成gc压(yā )力 源(yuán )码(mǎ )如(rú )下get recycle scavenge每次都(dōu )是从head节点获取,如果(guǒ )获取不(bú )到(dào )就next,这(zhè )些(xiē )队列并(bìng )不删(shān )除,jvm会自动在内存(cún )不够的时候删(shān )除
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