where can I find javadoc for junit

[june20100606]

There is no org.junit. * class in  JBPM4.3/lib/junit.jar. To run example , I have to add eclipse/plugins/org.junit*/junit.jar in build path. something wrong?

All examples are junit test. But I have nothing about junit. Where can I find userguide or javadoc of junit?

Thanks!

[mwohlf]

http://www.junit.org/

I also recommend:

http://www.webreference.com/content/search/ 

;-)