Found it is quite slow accessing BlogJava.net from abroad, always timeout and sometimes it was blocked. Not sure if it due to dudu is upgrading the new server.
Registered a new blog service at BlogSome, and my new blog is now: http://kukoo.blogsome.com.
Having blogs on CSDN and BlogJava, each one has quite some blogs. I am not going to abandon the two blogs, will try my best to maintain at least two blogs (BlogJava and BlogSome). But sooner or later, I may transfer to a more stable and better service vendor. Or, maybe I could register my own domain name, and host my blogs.
If you have subscribed my blog RSS feed, not need to change, you can just simply use my feed on FeedBurner: http://feeds.feedburner.com/kukooblog.