Bug 172606 Error icon in Library Explorer for multi-extends item.[01]
Description: Error icon in Library Explorer for multi-extends item. Build number:2.1.2.v20070202 Steps to reproduce: 1. New a.rptlibrary and b.rptlibrary. 2. New a table in a.rptlibray. 3. Open b.rptlibray and extends table item in a.rptlibray. 4. Open Library Explore, check table item inside b.rptlibrary. Expected result: Normal item icon before table item. Actual result: Error icon indicate the item exists errors. see attached.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
*/
	private static String getLibraryNamespace( ModuleHandle handle,
			String libraryPath )
	{
		String namespace = getSimpleFileName( libraryPath ).split( "\\." )[0]; 
		if ( handle.getLibrary( namespace ) != null )
		{
			ImportLibraryDialog dialog = new ImportLibraryDialog( namespace );
			if ( dialog.open( ) == Dialog.OK )
			{
				namespace = (String) dialog.getResult( );
			}
			else
			{
				namespace = null;
			}
		}
		return namespace;
	}
	public static ThemeHandle themeInModuleHandle( ThemeHandle handle,
			ModuleHandle moduleHandle )
	{
		String themeName = handle.getName( ).trim( );
		String themeFileName = handle.getModuleHandle( ).getFileName( );
		LibraryHandle libHandle = moduleHandle.findLibrary( themeFileName );
		if ( libHandle == null )
		{
			return null;
		}
		Iterator iterator = moduleHandle.getVisibleThemes( IAccessControl.DIRECTLY_INCLUDED_LEVEL )