Major Description
i deploy a tapestry portlet into liferay, the view page is working fine on screen, but when i click the hyperlink button from the tapestry portlet, the portlet is showing message "An exception has occured."
there are no found any error message or exception in tomcat, but onli showing exception message in liferay 4.3.1, "An exception has occured.", and Your server session has expired.