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
*             one is empty.
	 * 
	 */
	public void replaceConfigVariable( ConfigVariable oldVar,
			ConfigVariable newVar ) throws SemanticException
	{
		replaceObjectInList( CONFIG_VARS_PROP, oldVar, newVar );
	}
	/**
	 * Replaces the old embedded image with the new one.
	 * 
	 * @param oldVar
	 *            the old embedded image
	 * @param newVar
	 *            the new embedded image
	 * @throws SemanticException
	 *             if the old image is not found or the name of new one is
	 *             empty.
	 */
	public void replaceImage( EmbeddedImage oldVar, EmbeddedImage newVar )
			throws SemanticException
	{
		replaceObjectInList( IMAGES_PROP, oldVar, newVar );
	}
	/**
	 * Replaces an old object in the structure list with the given new one.
	 * 
	 * @param propName
	 *            the name of the property that holds a structure list
	 * @param oldVar