jboss error with servlet and jbpm-console
Hi All,
I created a simple workflow with one node which just prints out the message. I deployed this in jbpm using eclipse and then tested it through the UI..http://localhost:8080/jbpm-console and all looks good.
here is the WF xml
<?xml version="1.0" encoding="UTF-8"?> <process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="first-demo-process"> <start-state name="start-state1"> <transition to="node1"></transition> </start-state> <node name="node1"> <action class="com.sample.action.MessageActionHandler"> <message>ashish sending message1</message> </action> <transition to="end-state1"></transition> </node> <end-state name="end-state1"></end-state> </process-definition>
Now I created a servlet and deployed that, which hopefully will invoke the WF described above..here is the code for that..
package com.ashish.test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import org.jbpm.JbpmConfiguration;
import org.jbpm.JbpmContext;
import org.jbpm.db.GraphSession;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
public class WFTriggerServlet extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
out.println("inside processRequest function");
out.println(startProcess(16, "first-demo-process", null, null, true));
out.println("Ending call");
} finally {
out.close();
}
}
public long startProcess(long processId, String processName, String key, HashMap processVariables, boolean signalStart) {
long tokenId = 0;
JbpmConfiguration jbpmConfig = null;
JbpmContext jbpmContext = null;
try {
if (jbpmConfig == null) {
jbpmConfig = JbpmConfiguration.getInstance();
}
jbpmContext = jbpmConfig.createJbpmContext();
} catch (Exception e) {
return -1; //e.getMessage().toString();
}
try {
// get the session and process definition according to the process id
GraphSession graphSession = jbpmContext.getGraphSession();
ProcessDefinition processDefinition = null;
if (processName.length() > 0) {
processDefinition = graphSession.findLatestProcessDefinition(processName);
} else {
processDefinition = graphSession.getProcessDefinition(processId);
}
// if there are no process variables, then create an empty variable list
if (processVariables == null) {
processVariables = new HashMap();
}
// startup the process, set its business key (for correlation purposes, and
// signal it to start going with the flow
ProcessInstance processInstance = processDefinition.createProcessInstance(processVariables);
processInstance.setKey(key);
tokenId = processInstance.getRootToken().getId();
if (signalStart) {
processInstance.signal();
}
} finally {
jbpmContext.close();
}
return tokenId;
}
}
I copied the .war file for the servlet to /opt/software/jbpm-jpdl-3.2.3/server/server/jbpm/deploy/
and i see this on the console...
09:57:20,150 INFO [TomcatDeployer] deploy, ctxPath=/WFTrigger, warUrl=.../tmp/deploy/tmp21005WFTrigger-exp.war/ 09:57:20,697 INFO [WebappClassLoader] validateJarFile(/opt/software/jbpm-jpdl-3.2.3/server/server/jbpm/./tmp/deploy/tmp21005WFTrigger-exp.war/WEB-INF/lib/servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
Now when I try to hit http://localhost:8080/jbpm-console/sa/processes.jsf I am not able to view the JBPM page also and am getting this error on the console...
09:58:29,248 INFO [STDOUT] 09:58:29,248 INFO [JbpmConfiguration] using jbpm configuration resource 'jbpm.cfg.xml' 10:00:06,746 WARN [lifecycle] executePhase(RESTORE_VIEW 1,com.sun.faces.context.FacesContextImpl@62a404) threw exception javax.faces.application.ViewExpiredException: viewId:/sa/processes.jsf - View /sa/processes.jsf could not be restored. at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:187) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619) 10:00:06,749 WARN [lifecycle] phase(RESTORE_VIEW 1,com.sun.faces.context.FacesContextImpl@62a404) threw exception: java.lang.NullPointerException null org.jboss.gravel.common.phase.GravelPhaseListener.afterPhase(GravelPhaseListener.java:112) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:280) com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117) javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) java.lang.Thread.run(Thread.java:619) 10:00:06,749 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception javax.faces.application.ViewExpiredException: viewId:/sa/processes.jsf - View /sa/processes.jsf could not be restored. at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:187) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619)
Can anyone please help me with this ? Its really confusing for me as i am doing it for the first time....
Thanks
Ashish
