[362308] Deadlock when changing the target runtime of EAR project and its modules during autobuild

plugins/org.eclipse.jst.j2ee/j2eecreation/org/eclipse/jst/j2ee/project/facet/J2EEFacetRuntimeChangedDelegate.java

diff --git a/plugins/org.eclipse.jst.j2ee/j2eecreation/org/eclipse/jst/j2ee/project/facet/J2EEFacetRuntimeChangedDelegate.java b/plugins/org.eclipse.jst.j2ee/j2eecreation/org/eclipse/jst/j2ee/project/facet/J2EEFacetRuntimeChangedDelegate.java
index c4fd416..351e6a4 100644
--- a/plugins/org.eclipse.jst.j2ee/j2eecreation/org/eclipse/jst/j2ee/project/facet/J2EEFacetRuntimeChangedDelegate.java
+++ b/plugins/org.eclipse.jst.j2ee/j2eecreation/org/eclipse/jst/j2ee/project/facet/J2EEFacetRuntimeChangedDelegate.java
@@ -12,9 +12,11 @@
 package org.eclipse.jst.j2ee.project.facet;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 
 import org.eclipse.core.resources.IFile;
@@ -91,8 +93,11 @@
             // Compile the list of projects referenced by this project.
             final Set<IProject> childProjects = new HashSet<IProject>();
             
-            final IVirtualComponent projectVC = ComponentCore.createComponent( project );
-            final IVirtualReference[] vrefs = projectVC.getReferences();
+            final IVirtualComponent projectVC = ComponentCore.createComponent( project );           
+                      
+            Map<String, Object> options = new HashMap<String, Object>();
+            options.put(IVirtualComponent.REQUESTED_REFERENCE_TYPE, IVirtualComponent.HARD_REFERENCES);
+            final IVirtualReference[] vrefs = projectVC.getReferences(options);            	
             
             for( int i = 0; i < vrefs.length; i++ ) {
                 final IVirtualReference vref = vrefs[ i ];