Bug 156497 [Regression][Acceptance]Report isn't refreshed when delete used library file.
Description: Report isn't refreshed when delete used library file. Steps to reproduce: 1.New a library, add a label, input actuate. 2.New a report, extend lib.label 3.Delete the library file. 4.Refresh the report in Outline of the report Expected result: Empty label in Layout. Actual result: label with content "actuate" in Layout.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
* <code>element.getHandle( Module )</code>
	 * 
	 * @param elementList
	 *            a list of elements.
	 * @return a list of element handles.
	 */
	private List generateHandleList( List elementList )
	{
		List handleList = new ArrayList( );
		Iterator iter = elementList.iterator( );
		while ( iter.hasNext( ) )
		{
			DesignElement element = (DesignElement) iter.next( );
			Module root = element.getRoot( );
			assert root != null;
			handleList.add( element.getHandle( root ) );
		}
		return handleList;
	}
	/**
	 * Returns the libraries this report design includes directly or indirectly.
	 * Each in the returned list is the instance of <code>LibraryHandle</code>.
	 * 
	 * @return the libraries this report design includes directly or indirectly.
	 */
	public List getAllLibraries( )
	{
		return getLibraries( IModuleNameScope.ARBITARY_LEVEL );
	}
	/**