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 null;
		return element.getHandle( element.getRoot( ) );
	}
	/**
	 * Finds the image with the given name.
	 * 
	 * @param name
	 *            the image name
	 * @return embedded image with the given name. Return <code>null</code>,
	 *         if not found.
	 */
	public EmbeddedImage findImage( String name )
	{
		return module.findImage( name );
	}
	/**
	 * Finds the config variable with the given name.
	 * 
	 * @param name
	 *            the variable name
	 * @return the config variable with the given name. Return <code>null</code>,
	 *         if not found.
	 */
	public ConfigVariable findConfigVariable( String name )
	{
		return module.findConfigVariabel( name );
	}
	/**
	 * Finds the custom color with the given name.
	 *