Hello, I'm trying to put an action on a link but when the link is activated, the variables of the form are validated. I tried to do this : | <h:commandLink action="#{myBean.myAction}"> | but this validates the variables of the form (saying the variables are required) So I tried this : | <h:outputlink> | <a4j:support event="onclick" action="#{myBean.myAction}"> | </h:outputlink> | Then I got another error message saying : Error loading task instance: No task instance was found with an ID of 0 Error getting variable map: The value was given as null Error reading form information: The process value is null So I looked at the task.xhtml and found there were some conditions to load task, apply variable map and complete task . | <j4j:loadTask id="#{id}" target="#{xtask}" navigate="false" unless="#{button == 'cancel'}"/> | <j4j:applyVariableMap target="#{xtask}" variableMap="#{taskVariableMap}" navigate="false" unless="#{button == 'cancel'}"/> | <j4j:completeTask task="#{xtask}" transition="#{transition}" unless="#{button != 'transition'}" navigate="false"/> | So what test should I do to recognize the action link (that is not a jbpm taskform button) ? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4099442#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...