final GsonFactory			JSON_FACTORY			 = new GsonFactory();


AuthorizationCodeFlow flow = new AuthorizationCodeFlow.Builder(
			BearerToken.authorizationHeaderAccessMethod(),
			HTTP_TRANSPORT,
			JSON_FACTORY,
			new GenericUrl(TOKEN_SERVER_URL),
			new ClientParametersAuthentication(clientId, clientSecret),
			clientId,
			AUTHORIZATION_SERVER_URL)
				.setScopes(scopeList)
				.setDataStoreFactory(DATA_STORE_FACTORY)
				.build();

				

				
TokenResponse tokenResponse = new RefreshTokenRequest(
			new NetHttpTransport(),
			new GsonFactory(),
			new GenericUrl(TOKEN_SERVER_URL),
			store.getKey2())
				.setClientAuthentication(new BasicAuthentication(this.clientId, this.clientSecret))
				.execute();