strict null trouble

src/vs/platform/commands/common/commands.ts

@@ -132,7 +132,7 @@ export const CommandsRegistry: ICommandRegistry = new class implements ICommandR
 export const NullCommandService: ICommandService = {
 	_serviceBrand: undefined,
 	onWillExecuteCommand: () => ({ dispose: () => { } }),
-	executeCommand<T = any>() {
-		return Promise.resolve<T>(undefined);
+	executeCommand() {
+		return Promise.resolve(undefined);
 	}
 };

src/vs/workbench/services/themes/electron-browser/fileIconThemeData.ts

@@ -29,15 +29,15 @@ export class FileIconThemeData implements IFileIconTheme {
 
 	private constructor() { }
 
-	public ensureLoaded(fileService: IFileService): Promise<string> {
+	public ensureLoaded(fileService: IFileService): Promise<string | undefined> {
 		return !this.isLoaded ? this.load(fileService) : Promise.resolve(this.styleSheetContent);
 	}
 
-	public reload(fileService: IFileService): Promise<string> {
+	public reload(fileService: IFileService): Promise<string | undefined> {
 		return this.load(fileService);
 	}
 
-	private load(fileService: IFileService): Promise<string> {
+	private load(fileService: IFileService): Promise<string | undefined> {
 		if (!this.location) {
 			return Promise.resolve(this.styleSheetContent);
 		}