class BitcoinCoreWallet extends BaseExchange {

  @Override
  public ExchangeSpecification getDefaultExchangeSpecification() {<FILL_FUNCTION_BODY>}

  @Override
  public void applySpecification(final ExchangeSpecification specification) {
    if (specification.getPassword() == null) {
      throw new IllegalStateException("password must be set to enable the wallet's RPC interface");
    }

    super.applySpecification(specification);
  }

  @Override
  protected void initServices() {
    this.accountService = new BitcoinCoreAccountService(this);
  }

  @Override
  public void remoteInit() throws IOException, ExchangeException {
    // there is no remote init
  }

  @Override
  public SynchronizedValueFactory<Long> getNonceFactory() {
    throw new UnsupportedOperationException("not applicable");
  }
}

    ExchangeSpecification specification = new ExchangeSpecification(this.getClass());
    specification.setShouldLoadRemoteMetaData(false);
    specification.setPlainTextUri("http://localhost:8332/");
    specification.setExchangeName("BitcoinCore");
    specification.setExchangeDescription("BitcoinCore wallet");
    return specification;
  
<methods>public non-sealed void <init>() ,public void applySpecification(org.knowm.xchange.ExchangeSpecification) ,public org.knowm.xchange.service.account.AccountService getAccountService() ,public List<org.knowm.xchange.instrument.Instrument> getExchangeInstruments() ,public org.knowm.xchange.dto.meta.ExchangeMetaData getExchangeMetaData() ,public org.knowm.xchange.ExchangeSpecification getExchangeSpecification() ,public org.knowm.xchange.service.marketdata.MarketDataService getMarketDataService() ,public java.lang.String getMetaDataFileName(org.knowm.xchange.ExchangeSpecification) ,public SynchronizedValueFactory<java.lang.Long> getNonceFactory() ,public org.knowm.xchange.service.trade.TradeService getTradeService() ,public void remoteInit() throws java.io.IOException, org.knowm.xchange.exceptions.ExchangeException,public java.lang.String toString() <variables>protected org.knowm.xchange.service.account.AccountService accountService,protected org.knowm.xchange.dto.meta.ExchangeMetaData exchangeMetaData,protected org.knowm.xchange.ExchangeSpecification exchangeSpecification,protected final Logger logger,protected org.knowm.xchange.service.marketdata.MarketDataService marketDataService,private final SynchronizedValueFactory<java.lang.Long> nonceFactory,protected org.knowm.xchange.service.trade.TradeService tradeService