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    <title>topic Lane outside a Pool  - Activity Designer vs JBPM Designer difference in Alfresco Archive</title>
    <link>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170274#M123570</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Hi,&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;I have some .bpmn files created with the JBPM 5 Eclipse Designer, and any attempt to import / open them in Activity Designer fails with the following message:&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;—&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;java.lang.IllegalArgumentException: findParentPool was called on a lane that has no pool as a parent&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.designer.eclipse.navigator.diagram.LaneDiagramTreeNode.findParentProcess(LaneDiagramTreeNode.java:71)&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;—&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;As the error clearly states, the problem is that the diagram contains some lanes without an enclosing pool. Trying to build such a diagram with Activity Designer is not possible, because a lane can not be created outside a pool.&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;The JBPM 5 Designer however allows this construct and this is the cause of the problem.&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;I have three questions:&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;1 who is right with respect of the BPMN 2.0 rules ?&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;2 if Activity Designer is correctly implementing the BPMN 2.0 rules, a more gracefully error message when opening such a wrong diagram is imho required. &lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;3 otherwise, if the right behaviour is thr JBPM 5 Designer behaviour, the Activiti Designer has a bug.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Before filing a bug issue (which one ?) I would like to have the advice of anyone more expert than me on the matter.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Thank you.&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Mon, 03 Feb 2014 15:54:34 GMT</pubDate>
    <dc:creator>lucabur</dc:creator>
    <dc:date>2014-02-03T15:54:34Z</dc:date>
    <item>
      <title>Lane outside a Pool  - Activity Designer vs JBPM Designer difference</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170274#M123570</link>
      <description>Hi,I have some .bpmn files created with the JBPM 5 Eclipse Designer, and any attempt to import / open them in Activity Designer fails with the following message:—java.lang.IllegalArgumentException: findParentPool was called on a lane that has no pool as a parent&amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.designer.eclipse.na</description>
      <pubDate>Mon, 03 Feb 2014 15:54:34 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170274#M123570</guid>
      <dc:creator>lucabur</dc:creator>
      <dc:date>2014-02-03T15:54:34Z</dc:date>
    </item>
    <item>
      <title>Re: Lane outside a Pool  - Activity Designer vs JBPM Designer difference</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170275#M123571</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Of course, I'm biased &lt;span class="lia-unicode-emoji" title=":winking_face:"&gt;😉&lt;/span&gt;&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;1) My understanding is that a lane cannot exist without a pool (even if there is only one). It's a while I read that section of the spec though, but it sounds right to me.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;2) Correct.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;3) See 1 &lt;span class="lia-unicode-emoji" title=":slightly_smiling_face:"&gt;🙂&lt;/span&gt;&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;You can definitely file a bug, already to get a better exception stack trace. And reference this forum posts, so we can look it up in the spec when we get to the issue.&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 06 Feb 2014 11:06:11 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170275#M123571</guid>
      <dc:creator>jbarrez</dc:creator>
      <dc:date>2014-02-06T11:06:11Z</dc:date>
    </item>
    <item>
      <title>Re: Lane outside a Pool  - Activity Designer vs JBPM Designer difference</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170276#M123572</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;I am thinking, the solution or bug to be filled could be in helping Activiti Designer import jBPM5 designed .bpmn files without regard as to whether jBPM interpreted the spec correctly.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;It would be nice for the two leading open source BPMs to inter-operate to avoid some form of vendor lock-in as is happening in this case.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;P.S&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Whats the critical reason to leaving jBPM 5?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Regards&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Waithaka Ngigi&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;A1 Workpoint&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 07 Feb 2014 15:39:55 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/lane-outside-a-pool-activity-designer-vs-jbpm-designer/m-p/170276#M123572</guid>
      <dc:creator>ngigiwaithaka</dc:creator>
      <dc:date>2014-02-07T15:39:55Z</dc:date>
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