Thanks for your reply. <environment-interceptor /> is specified in jbpm.cfg.xml. Here is my complete configuration. <jbpm-configuration> <process-engine-context> <repository-service /> <repository-cache /> <execution-service /> <history-service /> <management-service /> <identity-service /> <task-service /> <command-service> <retry-interceptor /> <environment-interceptor /> </command-service> <hibernate-configuration> </hibernate-configuration> <hibernate-session-factory /> <script-manager default-expression-language="juel" default-script-language="juel"> <script-language name="juel" factory="org.jbpm.pvm.internal.script.JuelScriptEngineFactory" /> </script-manager> <id-generator /> <address-resolver /> </process-engine-context> <transaction-context> <repository-session /> <db-session /> <message-session /> <timer-session /> <history-session /> </transaction-context> </jbpm-configuration> Please suggest me if something wrong in this configuration. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4269835#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...