Our company is working on a research for comparing different Ajax
technologies for its web tier. Today I've downloaded 'richfaces-ui-3.2.0.SR1'.
Although it is stated in its reference document that it is compatible
with JDK 1.4 and Tomcat 4.1, but when a simple project is deployed in
Tomcat 4.1, the following exception is being shown in terminal:
2008-05-19 14:25:14 StandardContext[/richtest]: Exception sending context initialized event to listener in stance of class org.apache.myfaces.webapp.StartupServletContextListener java.lang.UnsupportedClassVersionError: org/ajax4jsf/application/AjaxStateManager (Unsupported major.minor version 49.0)
answered in duplicated thread