I'm studying the code in the Rich Client Petclinic sample project. Note that I have downloaded the latest development version of Rich Client from CVS and the latest release version of Spring Framework from Sourceforge. Currently, I'm looking at the class org.springframework.richclient.samples.petclinic.d omain.PetClinicValidationRulesSource.
In that class, I noticed some references to classes in the org.springframework.rules package (for example, the Constaints class). I found the CLASS files for those classes in the file spring-sandbox.jar. However, where can I find the JAVA files for those classes? Do I have to get them from the development version of Spring Framework in CVS?