VertxWebApplication.java

router.get("/assets/*").handler(ctxt -> {
      final ClassLoader original = Thread.currentThread().getContextClassLoader();
      try {
        LOGGER.info("Handling " + ctxt.normalisedPath());
        Thread.currentThread().setContextClassLoader(VertxWebApplication.class.getClassLoader());
        ctxt.next();
      } finally {
        Thread.currentThread().setContextClassLoader(original);
      }
    });
    router.get("/assets/*").handler(StaticHandler.create("assets"));