- Preconditions.checkState(instance == null, "createInstance() has already been called");
- Preconditions.checkNotNull(address, "Address cannot be null.");
- Preconditions.checkArgument(port >= 1024, "Privileged port (below 1024) is not allowed");
+ checkState(instance == null, "createInstance() has already been called");
+ checkArgument(port >= 1024, "Privileged port (below 1024) is not allowed");