Seems that i've found a reason, even if it was not so easy. I used different name and mapped name values for variables, so the default task controller after a task ending restored values of variables in context from taskInstance but as names of source variable it got mappedName. instead String name=varAccess.getVariableName(); String value=pRequest.getParameter(name); should be String name=varAccess.getMappedName(); String value=pRequest.getParameter(varAccess.getVariableName()); View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041305#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...