Jim Hill [http://community.jboss.org/people/jdh] created the discussion "Re: Execution Timeout on <group> and <process>" To view the discussion, visit: http://community.jboss.org/message/589611#589611 -------------------------------------------------------------- I am having the same problem and was going to present a post similar to yours.  In my case I'm running a custom java node that implements ExternalActivityBehaviour to wait for a messge.  The validation is specifying that one of the following is missing: cvc-complex-type.2.4.a: Invalid content was found starting with element 'timer'. One of '{" http://jbpm.org/4.4/jpdl&quot;:description http://jbpm.org/4.4/jpdl":description,          " http://jbpm.org/4.4/jpdl&quot;:event-listener http://jbpm.org/4.4/jpdl":event-listener,          " http://jbpm.org/4.4/jpdl&quot;:hql http://jbpm.org/4.4/jpdl":hql,          " http://jbpm.org/4.4/jpdl&quot;:sql http://jbpm.org/4.4/jpdl":sql,          " http://jbpm.org/4.4/jpdl&quot;:java http://jbpm.org/4.4/jpdl":java,          " http://jbpm.org/4.4/jpdl&quot;:assign http://jbpm.org/4.4/jpdl":assign,          " http://jbpm.org/4.4/jpdl&quot;:script http://jbpm.org/4.4/jpdl":script,          " http://jbpm.org/4.4/jpdl&quot;:mail}' http://jbpm.org/4.4/jpdl":mail}' is expected.  I'm experiencing this problem in  JBPM 4.4.  Can anyone help Sameeh and I out here?  This is what my jpdl looks like:   <group name="SendTHGroup">     <start>       <transition name="to WaitForTH"                   to="WaitForTH"/>     </start>     <custom name="WaitForTH"             class="...WaitForMessageActivity">       <transition name="to DidUserSendTH"                   to="DidUserSendTH"/>     </custom>     <decision name="DidUserSendTH">       <transition name="TH Sent"            to="SendTHDone">         <condition expr="#{className==&quot;THObject&quot;}"/>       </transition>       <!-- If we did not receive the TH object, keep waiting -->       <transition name="Keep waiting"                   to="SendTHDone"/>     </decision>     <end name="SendTHDone" />       <transition name="toLaunchEDForm"                 to="LaunchEDForm"/>     <transition name="timeout1" to="NotifyUserOfTimeout">       <timer duedate="5 minutes" />     </transition>   </group>          Thanks for any help you can provide. Jim -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/589611#589611] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]