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/command/LibraryCommand.java
SemanticException
	{
		Library library = module.getLibraryByLocation( location,
				IAccessControl.ARBITARY_LEVEL );
		if ( library == null )
			throw new LibraryException( library, null,
					LibraryException.DESIGN_EXCEPTION_LIBRARY_NOT_FOUND );
		
		while ( library != null )
		{
			if ( library.getHost( ) == module )
				break;
			library = (Library) library.getHost( );
		}
		String namespace = library.getNamespace( );
		IncludedLibrary includedItem = module.findIncludedLibrary( namespace );
		String path = includedItem.getFileName( );
		URL url = module.findResource( path, IResourceLocator.LIBRARY );
		if ( url == null )
		{
			DesignParserException ex = new DesignParserException(
					new String[]{path},
					DesignParserException.DESIGN_EXCEPTION_FILE_NOT_FOUND );
			List exceptionList = new ArrayList( );
			exceptionList.add( ex );
			throw new DesignFileException( path, exceptionList );
		}
		Map overriddenValues = null;
		ActivityStack activityStack = getActivityStack( );
		activityStack.startSilentTrans( true );