加(jiā )锁 同(tóng )时(shí )队列(liè )可以(yǐ )无限长(zhǎng )吗 什(shí )么时候消减,同(tóng )时采用了(le )弱引用避免队列(liè )过(guò )大,造成(chéng )gc压力 源码如下(xià )get recycle scavenge每次都是(shì )从head节点(diǎn )获取(qǔ ),如果获(huò )取(qǔ )不到就next,这些(xiē )队列并不(bú )删除,jvm会(huì )自动在内存(cún )不够的时候删除
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