I added those 2 tests to RoutingHandlerTestCase:

@Test
public void testWildCardRoutingTemplateHandler2() throws IOException {
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/wilder/test/card");
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals("wilder:[/test/card]", HttpClientUtils.readResponse(result));

} finally {
client.getConnectionManager().shutdown();
}
}

@Test
public void testWildCardRoutingTemplateHandler3() throws IOException {
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/wildestBeast");
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals("wildest:[Beast]", HttpClientUtils.readResponse(result));

} finally {
client.getConnectionManager().shutdown();
}
}
Additional routes are:
.add(Methods.GET, "/wilder/*", new HttpHandler() {
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
exchange.getResponseSender().send("wilder:" + exchange.getQueryParameters().get("*"));
}
})
.add(Methods.GET, "/wildest*", new HttpHandler() {
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
exchange.getResponseSender().send("wildest:" + exchange.getQueryParameters().get("*"));
}
})

Now the problem is that without a part representing the wildcard at the pathtemplate the PathTemplateMatcher doesn't work, and therefore the routing doesn't too.
However when I try to fix the PathTemplate the actual matching doesn't work.
I have no problem digging a bit and fixing this issue, I just want to know which class should be the preferred class to fix it.
Enhance the PathTemplateMatcher#match to handle the index of c correctly(which is complicated because wrong base in pathTemplates)
or fix PathTemplate#matches and PathTemplate#create
I would be really happy to get some feedback, right now I feel more like mangling with the PathTemplate because it seems to be
called only at creation/instantiation time instead of the Matcher which is called with every request.