加(jiā )锁 同时队(duì )列可以无限长吗 什么时(shí )候(hòu )消减(jiǎn ),同(tóng )时采用了(le )弱引用避免(miǎn )队列过大,造(zào )成(chéng )gc压(yā )力 源码(mǎ )如下get recycle scavenge每(měi )次都(dōu )是从head节(jiē )点(diǎn )获取,如(rú )果(guǒ )获取不到就(jiù )next,这些队列并不(bú )删(shān )除,jvm会自动(dòng )在(zài )内存不够的时候删除(chú )
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