code: private EmbeddedServerRunner registerEmbeddedServer(ExtensionContext context, boolean staticMode) {
  		Class<?> testClass = context.getRequiredTestClass();
  		EmbeddedServer<?> server = this.server == null ? instantiateServer(testClass, configuration) : this.server;
  
  		EmbeddedServerRunner serverAdapter = new EmbeddedServerRunner(server);
  		serverAdapter.beforeAll();
  
  		putEmbeddedServerAdapterInStore(context, serverAdapter, staticMode);
  
  		return serverAdapter;
  	}
docs: Start and register the embedded server.
  
  The embedded server may be used in two modes:
  
  <ul>
  <li>Started before all tests, and stopped after all tests, this is the static mode (the extension has been used as a static extension).</li>
  <li>Started before each tests, and stopped after eacg tests, this is the non static mode (the extension has not been used as a static extension).</li>
  </ul>
  
  @param context The test context.
  @param staticMode {@code true} if the extension has been registered as a static extension, {@code false} otherwise.
  @return The registered adapter.