if ( setDocumentContent( document, (IEditorInput) element ) )
if ( setDocumentContent( document, (IEditorInput) element, encoding ) )
	protected IDocument createDocument( Object element ) throws CoreException	{		if ( element instanceof IEditorInput )		{			IDocument document = createEmptyDocument( );			if ( setDocumentContent( document, (IEditorInput) element ) )			{				setupDocument( element, document );				return document;			}		}		return null;	}