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
return -1;
	}
	/**
	 * Finds a master page by name in this module and the included modules.
	 * 
	 * @param name
	 *            the name of the master page
	 * @return a handle to the master page, or <code>null</code> if the page
	 *         is not found
	 */
	public MasterPageHandle findMasterPage( String name )
	{
		DesignElement element = module.findPage( name );
		if ( element == null )
			return null;
		return (MasterPageHandle) element.getHandle( element.getRoot( ) );
	}
	/**
	 * Finds a parameter by name in this module and the included modules.
	 * 
	 * @param name
	 *            the name of the parameter
	 * @return a handle to the parameter, or <code>null</code> if the
	 *         parameter is not found
	 */
	public ParameterHandle findParameter( String name )
	{
		DesignElement element = module.findParameter( name );
		if ( element == null )
			return null;