Denis Golovin [http://community.jboss.org/people/dgolovin] replied to the discussion "why am i getting these errors with hibernate tools????" To view the discussion, visit: http://community.jboss.org/message/539604#539604 -------------------------------------------------------------- I guess you face this issue https://jira.jboss.org/jira/browse/JBIDE-6132 https://jira.jboss.org/jira/browse/JBIDE-6132. This might be a reason for class loading errors. Workaround is to close all editors and restart eclipse. Would be good to know what steps lead to this exception in your environment. Do you have any other exceptions in Error Log view? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/539604#539604] Start a new discussion in JBoss Tools at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]