4.x: Injection fails when starting server in parallel

[tomas-langer]

Cannot start server in parallel when pico is used - fails with service already initialized, works fine when starting listeners in sequence

To reproduce:

• LoomServer.java: uncomment lines 278+ and comment out

       for (ServerListener listener : listeners.values()) {
           listener.start();
       }

• run FtMain in níma examples - you will get the exception