public void loadLogicalCategories(){
  logicalOFMessageCategories=ImmutableSet.copyOf(logicalOFMessageCategories);
  numRequiredConnections=calcNumRequiredConnections();
}

public void loadLogicalCategories ( ) { logicalOFMessageCategories = ImmutableSet . copyOf ( logicalOFMessageCategories ) ; numRequiredConnections = calcNumRequiredConnections ( ) ; }
performs startup related actions for logical of message categories . setting the categories list to immutable ensures that unsupported operation exceptions will be activated if modifications are attempted .
