anchor.diff:      // extension points
       Configuration with(ConfigOperator operator);
       <T> T query(ConfigQuery<T> query);
  +
  +    ConfigurationContext getContext();
   }
   --------------------------------------------
   
  
positive.code: [source,java]
  .Accessing a +ConfigurationContextBuilder+
  --------------------------------------------
  ConfigurationContextBuilder preinitializedContextBuilder = ConfigurationProvider.getConfigurationContext().toBuilder();
  ConfigurationContextBuilder emptyContextBuilder = ConfigurationProvider.getConfigurationContextBuilder();
  --------------------------------------------
  
  
negative.code: [source,java]
  .Creating and applying a new +ConfigurationContext+
  --------------------------------------------
  ConfigurationContextBuilder preinitializedContextBuilder = ConfigurationProvider.getConfiguration().getContext()
                                                             .toBuilder();
  ConfigurationContext context = preinitializedContextBuilder.addPropertySources(new MyPropertySource())
                                                             .addPropertyFilter(new MyFilter()).build();
  ConfigurationProvider.setConfigurationContext(context);
  