### Question:
LangServerBootstrap { Launcher<LanguageClient> createServerLauncher( @Nonnull LanguageServer server, @Nonnull InputStream in, @Nonnull OutputStream out) { return LSPLauncher.createServerLauncher(server, in, out); }  static void main(String[] args);  }### Answer:
@Test void createServerLauncher() { LanguageServer server = new TestLanguageServer(); Launcher<LanguageClient> launcher = LangServerBootstrap.createServerLauncher(server, System.in, System.out); assertNotNull(launcher.getRemoteProxy()); }