[daisy] Workflow error assigning task to actor

[Caleb Callaway]

Hello,

Using Daisy 2.2, I've run into a problem when trying to assign a task from a
pool to a specific user: the error message is "Error assigning task to
actor." Stack trace is at the end of the e-mail. If I'm reading the trace
right, the problem is a null pointer exception thrown by this line of code
in NotifyTaskAssignAction.java

	EmailSubscriptionManager subscriptionManager =
(EmailSubscriptionManager)wfRepository.getExtension("EmailSubscriptionManage
r");

I've tried this on two separate instances of Daisy, one is my main
development/testbed instance, and one stock install that I haven't
customized at all, with the same results.

The sections from development/testbed myconfig.xml that I believe are
relevant run like this:

  <target path="/daisy/emailer/emailer">
    <configuration>
      <smtpHost>mail.autometrix.com</smtpHost>
      <fromAddress>daisy at autometrix.com</fromAddress>
    </configuration>
  </target>

  <target path="/daisy/extensions/emailnotifier/emailnotifier">
    <configuration>
      <repositoryUser password="[deleted]" user="internal"/>
      <documentURLs>
        <documentURL url="http://[internal site]/support/{id}"/>
      </documentURLs>
      <!--
      <eventsIngoredUsers>
        <user>john</user>
        <user>lisa</user>
      </eventsIngoredUsers>
      -->
        <enabled>false</enabled>
    </configuration>
  </target>

The extension is specified in the wikidata/daisy.xconf:

      <extension
class="org.outerj.daisy.emailnotifier.clientimpl.RemoteEmailSubscriptionMana
gerProvider" name="EmailSubscriptionManager"/>

I have administrative privileges. The user to whom I'm trying to assign the
task has a defined e-mail address. I've searched the mailing lists, searched
the documentation, and looked through the source code...I'm stumped, and
would very much appreciate some help.

Cocoon Stack Trace
Message: Sitemap: error calling continuation
context:/daisy/sitemap.xmap - 840:44	<map:call>

Java Stack Trace
Message: Sitemap: error calling continuation
Class: org.apache.cocoon.ProcessingException
Stacktrace:
org.apache.cocoon.ProcessingException.throwLocated
(ProcessingException.java:113)
org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke
(CallFunctionNode.java:126)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke
(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke
(ActTypeNode.java:139)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke
(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke
(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke
(PipelineNode.java:143)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke
(PipelinesNode.java:93)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:235)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:177)
org.apache.cocoon.components.treeprocessor.TreeProcessor.process
(TreeProcessor.java:253)
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke
(MountNode.java:118)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke
(PipelineNode.java:143)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke
(PipelinesNode.java:93)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:235)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:177)
org.apache.cocoon.components.treeprocessor.TreeProcessor.process
(TreeProcessor.java:253)
org.apache.cocoon.Cocoon.process (Cocoon.java:699)
org.apache.cocoon.servlet.CocoonServlet.service (CocoonServlet.java:1154)
javax.servlet.http.HttpServlet.service (HttpServlet.java:820)
org.mortbay.jetty.servlet.ServletHolder.handle (ServletHolder.java:487)
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1098)
org.outerj.daisy.frontend.util.CharacterEncodingFilter.doFilter
(CharacterEncodingFilter.java:35)
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1089)
org.mortbay.jetty.servlet.ServletHandler.handle (ServletHandler.java:365)
org.mortbay.jetty.security.SecurityHandler.handle (SecurityHandler.java:216)
org.mortbay.jetty.servlet.SessionHandler.handle (SessionHandler.java:181)
org.mortbay.jetty.handler.ContextHandler.handle (ContextHandler.java:712)
org.mortbay.jetty.webapp.WebAppContext.handle (WebAppContext.java:405)
org.mortbay.jetty.handler.HandlerCollection.handle
(HandlerCollection.java:114)
org.mortbay.jetty.handler.HandlerWrapper.handle (HandlerWrapper.java:139)
org.mortbay.jetty.Server.handle (Server.java:285)
org.mortbay.jetty.HttpConnection.handleRequest (HttpConnection.java:502)
org.mortbay.jetty.HttpConnection$RequestHandler.content
(HttpConnection.java:835)
org.mortbay.jetty.HttpParser.parseNext (HttpParser.java:641)
org.mortbay.jetty.HttpParser.parseAvailable (HttpParser.java:208)
org.mortbay.jetty.HttpConnection.handle (HttpConnection.java:378)
org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:368)
org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)

Message: Error assigning task to actor.
Class: org.outerj.daisy.workflow.WorkflowException
Stacktrace:
sun.reflect.NativeConstructorAccessorImpl.newInstance0 [native method]
(NativeConstructorAccessorImpl.java:-2)
sun.reflect.NativeConstructorAccessorImpl.newInstance
(NativeConstructorAccessorImpl.java:39)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance
(DelegatingConstructorAccessorImpl.java:27)
java.lang.reflect.Constructor.newInstance (Constructor.java:513)
org.outerj.daisy.repository.clientimpl.infrastructure.DaisyHttpClient.tryRes
toreOriginalException (DaisyHttpClient.java:255)
org.outerj.daisy.repository.clientimpl.infrastructure.DaisyHttpClient.tryRes
toreOriginalExceptionAndThrowIt (DaisyHttpClient.java:218)
org.outerj.daisy.repository.clientimpl.infrastructure.DaisyHttpClient.handle
NotOkResponse (DaisyHttpClient.java:173)
org.outerj.daisy.repository.clientimpl.infrastructure.DaisyHttpClient.execut
eMethod (DaisyHttpClient.java:111)
org.outerj.daisy.workflow.clientimpl.RemoteWorkflowManager.assignTask
(RemoteWorkflowManager.java:451)
org.outerj.daisy.frontend.workflow.WfAssignTaskApple.processRequest
(WfAssignTaskApple.java:118)
org.outerj.daisy.frontend.util.AbstractDaisyApple.process
(AbstractDaisyApple.java:61)
org.apache.cocoon.components.flow.apples.ApplesProcessor.processApple
(ApplesProcessor.java:139)
org.apache.cocoon.components.flow.apples.ApplesProcessor.handleContinuation
(ApplesProcessor.java:108)
org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke
(CallFunctionNode.java:124)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke
(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke
(ActTypeNode.java:139)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke
(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:47)
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke
(MatchNode.java:108)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke
(PipelineNode.java:143)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke
(PipelinesNode.java:93)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:235)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:177)
org.apache.cocoon.components.treeprocessor.TreeProcessor.process
(TreeProcessor.java:253)
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke
(MountNode.java:118)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke
(PipelineNode.java:143)
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes (AbstractParentProcessingNode.java:69)
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke
(PipelinesNode.java:93)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:235)
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:177)
org.apache.cocoon.components.treeprocessor.TreeProcessor.process
(TreeProcessor.java:253)
org.apache.cocoon.Cocoon.process (Cocoon.java:699)
org.apache.cocoon.servlet.CocoonServlet.service (CocoonServlet.java:1154)
javax.servlet.http.HttpServlet.service (HttpServlet.java:820)
org.mortbay.jetty.servlet.ServletHolder.handle (ServletHolder.java:487)
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1098)
org.outerj.daisy.frontend.util.CharacterEncodingFilter.doFilter
(CharacterEncodingFilter.java:35)
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1089)
org.mortbay.jetty.servlet.ServletHandler.handle (ServletHandler.java:365)
org.mortbay.jetty.security.SecurityHandler.handle (SecurityHandler.java:216)
org.mortbay.jetty.servlet.SessionHandler.handle (SessionHandler.java:181)
org.mortbay.jetty.handler.ContextHandler.handle (ContextHandler.java:712)
org.mortbay.jetty.webapp.WebAppContext.handle (WebAppContext.java:405)
org.mortbay.jetty.handler.HandlerCollection.handle
(HandlerCollection.java:114)
org.mortbay.jetty.handler.HandlerWrapper.handle (HandlerWrapper.java:139)
org.mortbay.jetty.Server.handle (Server.java:285)
org.mortbay.jetty.HttpConnection.handleRequest (HttpConnection.java:502)
org.mortbay.jetty.HttpConnection$RequestHandler.content
(HttpConnection.java:835)
org.mortbay.jetty.HttpParser.parseNext (HttpParser.java:641)
org.mortbay.jetty.HttpParser.parseAvailable (HttpParser.java:208)
org.mortbay.jetty.HttpConnection.handle (HttpConnection.java:378)
org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:368)
org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)

Message:
Class: org.jbpm.graph.def.DelegationException
Stacktrace:
ATTENTION: this is the stacktrace of an exception that happened on the
repository server.
org.jbpm.graph.def.GraphElement.raiseException (GraphElement.java:367)
sun.reflect.NativeMethodAccessorImpl.invoke0 [native method]
(NativeMethodAccessorImpl.java:-2)
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke (Method.java:597)
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke
(CGLIBLazyInitializer.java:147)
org.jbpm.graph.def.ProcessDefinition$$EnhancerByCGLIB$$5907caa1.raiseExcepti
on (<generated>:-1)
org.jbpm.graph.def.GraphElement.raiseException (GraphElement.java:358)
sun.reflect.NativeMethodAccessorImpl.invoke0 [native method]
(NativeMethodAccessorImpl.java:-2)
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke (Method.java:597)
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke
(CGLIBLazyInitializer.java:147)
org.jbpm.graph.node.TaskNode$$EnhancerByCGLIB$$3095147b.raiseException
(<generated>:-1)
org.jbpm.graph.def.GraphElement.raiseException (GraphElement.java:358)
org.jbpm.graph.def.GraphElement.executeAction (GraphElement.java:261)
org.jbpm.graph.def.GraphElement.executeActions (GraphElement.java:215)
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent
(GraphElement.java:185)
org.jbpm.graph.def.GraphElement.fireEvent (GraphElement.java:169)
sun.reflect.NativeMethodAccessorImpl.invoke0 [native method]
(NativeMethodAccessorImpl.java:-2)
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke (Method.java:597)
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke
(CGLIBLazyInitializer.java:147)
org.jbpm.taskmgmt.def.Task$$EnhancerByCGLIB$$9cea687e.fireEvent
(<generated>:-1)
org.jbpm.taskmgmt.exe.TaskInstance.setActorId (TaskInstance.java:289)
org.outerj.daisy.workflow.serverimpl.CommonWorkflowManager$20.run
(CommonWorkflowManager.java:1019)
org.outerj.daisy.workflow.serverimpl.CommonWorkflowManager.executeJbpmRunnab
le (CommonWorkflowManager.java:1415)
org.outerj.daisy.workflow.serverimpl.CommonWorkflowManager.assignTask
(CommonWorkflowManager.java:1009)
org.outerj.daisy.workflow.serverimpl.WorkflowManagerImpl.assignTask
(WorkflowManagerImpl.java:118)
org.outerj.daisy.workflow.serverimpl.httpconnector.handlers.TaskHandler.hand
leRequest (TaskHandler.java:93)
org.outerj.daisy.httpconnector.HttpConnector$PathHandler.handle
(HttpConnector.java:339)
org.outerj.daisy.httpconnector.HttpConnector$DaisyServlet.service
(HttpConnector.java:282)
javax.servlet.http.HttpServlet.service (HttpServlet.java:802)
org.mortbay.jetty.servlet.ServletHolder.handle (ServletHolder.java:487)
org.mortbay.jetty.servlet.ServletHandler.handle (ServletHandler.java:367)
org.mortbay.jetty.security.SecurityHandler.handle (SecurityHandler.java:216)
org.mortbay.jetty.handler.ContextHandler.handle (ContextHandler.java:712)
org.mortbay.jetty.handler.HandlerWrapper.handle (HandlerWrapper.java:139)
org.mortbay.jetty.Server.handle (Server.java:285)
org.mortbay.jetty.HttpConnection.handleRequest (HttpConnection.java:502)
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
(HttpConnection.java:821)
org.mortbay.jetty.HttpParser.parseNext (HttpParser.java:513)
org.mortbay.jetty.HttpParser.parseAvailable (HttpParser.java:208)
org.mortbay.jetty.HttpConnection.handle (HttpConnection.java:378)
org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:368)
org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)

Message:
Class: java.lang.NullPointerException
Stacktrace:
ATTENTION: this is the stacktrace of an exception that happened on the
repository server.
org.outerj.daisy.workflow.jbpm_util.NotifyTaskAssignAction.execute
(NotifyTaskAssignAction.java:78)
org.jbpm.graph.def.Action.execute (Action.java:122)
org.jbpm.graph.def.GraphElement.executeAction (GraphElement.java:247)
org.jbpm.graph.def.GraphElement.executeActions (GraphElement.java:215)
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent
(GraphElement.java:185)
org.jbpm.graph.def.GraphElement.fireEvent (GraphElement.java:169)
sun.reflect.NativeMethodAccessorImpl.invoke0 [native method]
(NativeMethodAccessorImpl.java:-2)
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke (Method.java:597)
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke
(CGLIBLazyInitializer.java:147)
org.jbpm.taskmgmt.def.Task$$EnhancerByCGLIB$$9cea687e.fireEvent
(<generated>:-1)
org.jbpm.taskmgmt.exe.TaskInstance.setActorId (TaskInstance.java:289)
org.outerj.daisy.workflow.serverimpl.CommonWorkflowManager$20.run
(CommonWorkflowManager.java:1019)
org.outerj.daisy.workflow.serverimpl.CommonWorkflowManager.executeJbpmRunnab
le (CommonWorkflowManager.java:1415)
org.outerj.daisy.workflow.serverimpl.CommonWorkflowManager.assignTask
(CommonWorkflowManager.java:1009)
org.outerj.daisy.workflow.serverimpl.WorkflowManagerImpl.assignTask
(WorkflowManagerImpl.java:118)
org.outerj.daisy.workflow.serverimpl.httpconnector.handlers.TaskHandler.hand
leRequest (TaskHandler.java:93)
org.outerj.daisy.httpconnector.HttpConnector$PathHandler.handle
(HttpConnector.java:339)
org.outerj.daisy.httpconnector.HttpConnector$DaisyServlet.service
(HttpConnector.java:282)
javax.servlet.http.HttpServlet.service (HttpServlet.java:802)
org.mortbay.jetty.servlet.ServletHolder.handle (ServletHolder.java:487)
org.mortbay.jetty.servlet.ServletHandler.handle (ServletHandler.java:367)
org.mortbay.jetty.security.SecurityHandler.handle (SecurityHandler.java:216)
org.mortbay.jetty.handler.ContextHandler.handle (ContextHandler.java:712)
org.mortbay.jetty.handler.HandlerWrapper.handle (HandlerWrapper.java:139)
org.mortbay.jetty.Server.handle (Server.java:285)
org.mortbay.jetty.HttpConnection.handleRequest (HttpConnection.java:502)
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
(HttpConnection.java:821)
org.mortbay.jetty.HttpParser.parseNext (HttpParser.java:513)
org.mortbay.jetty.HttpParser.parseAvailable (HttpParser.java:208)
org.mortbay.jetty.HttpConnection.handle (HttpConnection.java:378)
org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:368)
org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)