Based on the green UML in the use of the problem (for large projects, click Generate class diagram does not respond), you can only re-search for other plug-ins. Inadvertently, found AMATERASUML.
Official website: Http://amateras.sourceforge.jp/cgi-bin/fswiki_en/wiki.cgi?page=AmaterasUML
Scope of application: above Eclipse version 3.3
Other requirements: JDT, GEF
Installation method:
1. Install AMATERASUML plug-in
Go directly to the official website and download the latest version of Amaterasuml_1.3.4.tar. Then unzip, copy and paste the extracted three files into the directory D:\eclipse3.3.2\eclipse\plugins (your directory may not be the same as mine).
2. Installation of JDT, GEF
Installation of the above-mentioned online installation of the GEF method installs the JDT and GEF. There is no repetition here.
3. Restart Eclipse
After 1, 2 steps are complete, restart Eclipse, you can use AMATERASUML. For the use of the method, please refer to the official website. Here's just a map:
As to the plug-in is not a problem, is still in use, follow up.
"Go" Recommended UML plugin AMATERASUML