plugins/org.eclipse.bpel.common.model/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin>
   <extension
         id="modelMarker"
         name="%MODEL_MARKER_NAME"
         point="org.eclipse.core.resources.markers">
      <super
            type="org.eclipse.core.resources.marker">
      </super>
      <attribute
            name="org.eclipse.bpel.common.model.modelMarker.objectId">
      </attribute>
   </extension>
  <extension point="org.eclipse.emf.ecore.generated_package">
    <package 
       uri = "http:///extensionmodel.ecore" 
       class = "org.eclipse.bpel.common.extension.model.ExtensionmodelPackage"
       genModel = "src/model/extensionmodel.genmodel" /> 
  </extension>

</plugin>