Pageflow error in Tomcat5.5
tschnoelzer Jan 22, 2006 3:19 PMHi all,
we are using seam in tomcat envirement and want to use jbpm for pageflows. the configuration is in seam.properties like this:
org.jboss.seam.init.componentClasses org.jboss.seam.core.Jbpm
org.jboss.seam.core.jbpm.pageflowDefinitions pageflow.jpdl.xml
problem when @Begin(pageflow="testflow") public String start() is called:
Caused by: javax.faces.el.EvaluationException: /timo.xhtml @18,85 action="#{test.start}": java.lang.NullPointerException
at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
... 23 more
Caused by: java.lang.NullPointerException
at org.jboss.seam.interceptors.ConversationInterceptor.beginPageflow(ConversationInterceptor.java:232)
at org.jboss.seam.interceptors.ConversationInterceptor.beginNavigation(ConversationInterceptor.java:189)
at org.jboss.seam.interceptors.ConversationInterceptor.beginConversation(ConversationInterceptor.java:175)
at org.jboss.seam.interceptors.ConversationInterceptor.beginConversationIfNecessary(ConversationInterceptor.java:136)
at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:60)
the cause for this is in the class ConversationInterceptor at:
private void beginPageflow(String processDefinitionName)
{
ProcessDefinition pd = Jbpm.instance().getPageflowProcessDefinition(processDefinitionName);
ProcessInstance pi = pd.createProcessInstance();
Pageflow.instance().setProcessInstance(pi);
pi.signal();
}
where Jbpm.instance is returning null. So the call : (Jbpm) Contexts.getApplicationContext().get(Jbpm.class) has no entry for Jbpm.class in the map. When i call jbpm manually with:
JbpmConfiguration configuration = JbpmConfiguration.getInstance();
JbpmContext context = configuration.createJbpmContext();
Jbpm.instance();
i get a right result.
So i think the context is not loaded. Where do i have to put the pageflow.xml to? perhapes the root of classpath is not the place to be?!?!
Thx for any help on this
Timo