Few Chinese went on street to protest the anniversary of Japanese invasion of the northeastern China in 1931. Japanese media reported only a dozen or so protesters went on street in Beijing and Shanghai. A lone protester showed up in Guangzhou. The anniversary of this year is especially sensitive because a Chinese fishing boat captain was arrested by Japanese authority when fishing in Chinese water on September 7, 2010. The Captain was sentenced to 10 days by Japanese domestic crime code. The action was seen as a trap by Japan to claim sovereignty of the disputed water around Diaoyu Island.
It's a signal that most Chinese people and in particular the younger generation are either alerted of being used as the communist government's cat paws, or too occupied by the burden of living to be interested on political issues. Or maybe a combination of both.