加(jiā )锁 同(tóng )时(shí )队(duì )列可以(yǐ )无(wú )限长吗 什么时(shí )候消减(jiǎn ),同时采用了弱引(yǐn )用避免(miǎn )队列过大(dà ),造成(chéng )gc压力 源码如(rú )下get recycle scavenge每次都(dōu )是从(cóng )head节点(diǎn )获取,如果获取不到就next,这些队(duì )列并(bìng )不删除(chú ),jvm会自(zì )动在内存(cún )不够(gòu )的时(shí )候删除(chú )
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