MochaJouranl is a JAVA based LiveJournal client. I have been working on it for a couple of years now, recently having revamped the UI, protocol interface and feature support.
I am pround to say that v2.0 is the proper official release, hence why I am finally posting about it here!
You can check mochajournal community for information on the bug fixes, new and updated features that are appearing in this latest release. In addition, it's a great place to post bug reports, comments and suggestions for future releases.
Feel free to download it and try it out. It supports the Windows, Linux/Unix and Mac X platform, basically any platform supporting JAVA 2 (1.4.1_5 and above).