Hi, I have an issue with the path template for the built in handler "Handlers.routing", when execute this implementation: public class UndertowOnePathVariableApplication { private static final Logger LOGGER = LoggerFactory.getLogger(UndertowOnePathVariableApplication.class); public static void main(final String[] args) { Undertow.builder() .addHttpListener(8080, "localhost") .setHandler( Handlers.routing() .get("/api/v1/orders/", (exchange) -> { LOGGER.info("The path template defined is '/api/v1/orders/'"); LOGGER.info("The request URI '{}' and URL '{}'", exchange.getRequestURI(), exchange.getRequestURL()); exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain"); exchange.setStatusCode(StatusCodes.OK) .getResponseSender().send("All Orders"); }) .get("/api/v1/orders/{orderId}", (exchange) -> { LOGGER.info("The path template defined is '/api/v1/orders/{orderId}'"); LOGGER.info("The request URI '{}' and URL '{}'", exchange.getRequestURI(), exchange.getRequestURL()); exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain"); exchange.setStatusCode(StatusCodes.OK) .getResponseSender().send( "Order '" + exchange.getQueryParameters().get("orderId").getLast() + "'"); })) .build() .start(); } } I get this responses: boggard@xiuhcoatl:~$ curl -v 'http://localhost:8080/api/v1/orders' * Trying 127.0.0.1... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 8080 (#0) < HTTP/1.1 404 Not Found < Connection: keep-alive < Content-Length: 0 < Date: Sun, 21 Jan 2018 02:01:53 GMT < * Connection #0 to host localhost left intact boggard@xiuhcoatl:~$ curl -v 'http://localhost:8080/api/v1/orders/' * Trying 127.0.0.1... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 8080 (#0) < HTTP/1.1 200 OK < Connection: keep-alive < Content-Type: text/plain < Content-Length: 10 < Date: Sun, 21 Jan 2018 02:02:45 GMT < * Connection #0 to host localhost left intact All Orders boggard@xiuhcoatl:~$ curl -v 'http://localhost:8080/api/v1/orders/12345' * Trying 127.0.0.1... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 8080 (#0) < HTTP/1.1 200 OK < Connection: keep-alive < Content-Type: text/plain < Content-Length: 13 < Date: Sun, 21 Jan 2018 02:03:56 GMT < * Connection #0 to host localhost left intact Order '12345' That I thing is correct because I just define two paths: '.../orders/' and '.../orders/{orderId}'. And the path '.../orders', that is not defined, respond 404. But when use this implementation: public class UndertowTwoPathVariablesApplication { private static final Logger LOGGER = LoggerFactory.getLogger(UndertowTwoPathVariablesApplication.class); public static void main(final String[] args) { Undertow.builder() .addHttpListener(8080, "localhost") .setHandler( Handlers.routing() .get("/api/v1/orders/{orderId}/items/", (exchange) -> { LOGGER.info("The path template defined is '/api/v1/orders/{orderId}/items/'"); LOGGER.info("The request URI '{}' and URL '{}'", exchange.getRequestURI(), exchange.getRequestURL()); exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain"); exchange.setStatusCode(StatusCodes.OK) .getResponseSender().send( "Order '" + exchange.getQueryParameters().get("orderId").getLast() + "'"); }) .get("/api/v1/orders/{orderId}/items/{itemId}", (exchange) -> { LOGGER.info("The path template defined is '/api/v1/orders/{orderId}/items/{itemId}'"); LOGGER.info("The request URI '{}' and URL '{}'", exchange.getRequestURI(), exchange.getRequestURL()); exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain"); exchange.setStatusCode(StatusCodes.OK) .getResponseSender().send( "Order '" + exchange.getQueryParameters().get("orderId").getLast() + "' Item '" + exchange.getQueryParameters().get("itemId").getLast() + "'"); })) .build() .start(); } } I get this responses: boggard@xiuhcoatl:~$ curl -v 'http://localhost:8080/api/v1/orders/12345/items' * Trying 127.0.0.1... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 8080 (#0) < HTTP/1.1 200 OK < Connection: keep-alive < Content-Type: text/plain < Content-Length: 13 < Date: Sun, 21 Jan 2018 02:08:45 GMT < * Connection #0 to host localhost left intact Order '12345' boggard@xiuhcoatl:~$ curl -v 'http://localhost:8080/api/v1/orders/12345/items/' * Trying 127.0.0.1... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 8080 (#0) < HTTP/1.1 200 OK < Connection: keep-alive < Content-Type: text/plain < Content-Length: 21 < Date: Sun, 21 Jan 2018 02:09:11 GMT < * Connection #0 to host localhost left intact Order '12345' Item '' boggard@xiuhcoatl:~$ curl -v 'http://localhost:8080/api/v1/orders/12345/items/09876' * Trying 127.0.0.1... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 8080 (#0) < HTTP/1.1 200 OK < Connection: keep-alive < Content-Type: text/plain < Content-Length: 26 < Date: Sun, 21 Jan 2018 02:09:30 GMT < * Connection #0 to host localhost left intact Order '12345' Item '09876' That I thing is incorrect because there are just two paths again: '.../orders/{orderId}/items/' and '.../orders/{orderId}/items/{itemId}' but the curl with the exact URI use the second path template. Is this an issue or what I am doing wrong? Best Regards Fernando Cruz