Hi, I am trying to invoke process from the External Client as Servlet. I have the below code JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance(); System.out.println("###Starting from the jBPM"+jbpmConfiguration); jbpmContext = jbpmConfiguration.createJbpmContext(); System.out.println("###Starting from the jBPM"+jbpmContext); processInstance = jbpmContext.newProcessInstance("websale"); System.out.println("###processInstance"+processInstance); //contextInstance = processInstance.getContextInstance(); //contextInstance.setVariable("var", "abc"); processInstance.getRootToken().signal(); In place of the First line, I have tried in various options /JbpmConfiguration jbpmConfiguration = JbpmConfiguration.parseResource("org/jbpm/default.jbpm.cfg.xml");. Either way I could not suceed the execution. I am hitting the below error. 2:02:57,727 INFO [CachedConnectionManager] Closing a connection for you. Please close them yourself: org.jboss.resource.adapter.jdbc.WrappedConnection@185b723 java.lang.Throwable: STACKTRACE at org.jboss.resource.connectionmanager.CachedConnectionManager.registerConnection(CachedConnectionManager.java:290) at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:417) at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842) at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88) at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144) at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:119) at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:57) at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326) at org.jbpm.persistence.db.DbPersistenceService.getSession(DbPersistenceService.java:98) at org.jbpm.persistence.db.DbPersistenceService.getGraphSession(DbPersistenceService.java:227) at org.jbpm.JbpmContext.getGraphSession(JbpmContext.java:537) at org.jbpm.JbpmContext.newProcessInstance(JbpmContext.java:370) at first.Welcome.doGet(Welcome.java:104) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Unknown Source) Can anyone Help me to solve the above issue. Thanks Nag View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4252435#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...