Hi Riccardo, URL rewrite is deprecated, last version 2.25
https://camel.apache.org/manual/latest/camel-3-migration-guide.html you must use real proxy to do that, like NGINX or HTTPD Apache. Hope is help! Daniel Langevin Direction de l’assistance et des technologies Direction des ressources informationnelles et matérielles Société d’habitation du Québec Édifice Marie-Guyart 1054, rue Louis-Alexandre-Taschereau Aile Jacques-Parizeau, 1er étage Québec (Québec) G1R 5E7 Téléphone : 418 643-4035, poste 1191 Sans frais : 1 800 463-4315 >>> De : "Modanese, Riccardo" <riccardo.modan...@eurotech.com.INVALID> À : "users@camel.apache.org" <users@camel.apache.org> Date : 2021-05-04 10:07 Objet : Http4 endpoint throws UrlRewrite NoClassDef Hi all, I’m moving http routes from Camel 2.x to 3.x. Main dependencies are Camel 3.4 SpringBoot 2.2.7-RELEASE Spring 5.2.6-RELEASE The http endpoints are configured at runtime and injected into Spring context. So, when a message is routed to an http endpoint I get this exception: Caused by: java.lang.NoClassDefFoundError: org/apache/camel/http/common/UrlRewrite at org.apache.camel.component.http4.HttpComponent.createEndpoint(HttpComponent.java:237) at org.apache.camel.support.DefaultComponent.createEndpoint(DefaultComponent.java:237) at org.apache.camel.impl.engine.AbstractCamelContext.doGetEndpoint(AbstractCamelContext.java:846) at org.apache.camel.impl.engine.AbstractCamelContext.getEndpoint(AbstractCamelContext.java:773) at org.apache.camel.support.CamelContextHelper.getMandatoryEndpoint(CamelContextHelper.java:73) at org.apache.camel.support.ExchangeHelper.resolveEndpoint(ExchangeHelper.java:114) at org.apache.camel.support.ExchangeHelper.resolveEndpoint(ExchangeHelper.java:92) I cannot find any UrlRewrite class/interface in Camel 3.x libraries (only camel-http-commons 2.x seems to have one) Looking at the stacktrace I don’t understand if I have some dirty dependency tree since from my understanding http4 package was renamed to http right?(https://camel.apache.org/manual/latest/camel-3-migration-guide.html) Can someone point me to the right direction to solve this issue? Thank you Riccardo