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
public List getAllDataSets( )
	{
		IModuleNameScope namescope = module
				.getModuleNameSpace( Module.DATA_SET_NAME_SPACE );
		List elementList = namescope
				.getElements( IModuleNameScope.ARBITARY_LEVEL );
		return generateHandleList( elementList );
	}
	/**
	 * Returns data set handles that are visible to this modules.
	 * 
	 * @return data set handles that are visible to this modules.
	 */
	public List getVisibleDataSets( )
	{
		IModuleNameScope namescope = module
				.getModuleNameSpace( Module.DATA_SET_NAME_SPACE );
		List elementList = namescope
				.getElements( IModuleNameScope.NATIVE_LEVEL );
		return generateHandleList( elementList );
	}
	/**
	 * Returns the embedded images which are defined on the module itself. The
	 * embedded images defined in the included libraries will not be returned by
	 * this method.
	 * 
	 * @return the local embedded image list.
	 */
	public List getVisibleImages( )
	{