### Question:
HttpClientConfigurableHttpConnectionFactory implements ConfigurableHttpConnectionFactory { @Override public void addConfiguration(MultipleJGitEnvironmentProperties environmentProperties) throws GeneralSecurityException { addHttpClient(environmentProperties); for (JGitEnvironmentProperties repo : environmentProperties.getRepos().values()) { addHttpClient(repo); } }  @Override void addConfiguration(MultipleJGitEnvironmentProperties environmentProperties); @Override HttpConnection create(URL url); @Override HttpConnection create(URL url, Proxy proxy);  }### Answer:
@Test public void nullPointerCheckGh1051() throws Exception { MultipleJGitEnvironmentProperties properties = new MultipleJGitEnvironmentProperties(); this.connectionFactory.addConfiguration(properties); }