Resteasy Client Wildfly 23 - IncompatibleClassChangeError-CodePudding

I use Wildfly 23. I tried to implement a Resteasy Client (Version 4.7.0). Here is my code:

    ResteasyClient client = new ResteasyClientBuilderImpl().build();
    ResteasyWebTarget getEvent = client.target("https:......");
    Response getEventResponse = getEvent.request().get(); ...

But I get this error when "ResteasyClient client = new ResteasyClientBuilderImpl().build();" is invoked:

 Failed to define class org.jboss.resteasy.client.jaxrs.internal.ResteasyClientImpl in Module "deployment.isymnd.war" from Service Module Loader: java.lang.IncompatibleClassChangeError: Failed to link org/jboss/resteasy/client/jaxrs/internal/ResteasyClientImpl (Module "deployment.isymnd.war" from Service Module Loader): Implementing class

Does anyone has an idea what I am doing wrong? Thank you a lot, Nicole

CodePudding user response：

You're using a newer version of the client than WildFly 23 provides. WildFly 23 uses 3.15.1.Final. You should also ensure you're not including the JAR in your deployment.

CodePudding user response：

An alternative would be to use the JEE API for jaxrs client (especially as you are using Wildfly !)

Client client = ClientBuilder.newClient();

client.target(baseUri)
     .path("/users")
     .path(userId)
     .path("/roles")
     .request(MediaType.APPLICATION_XML)
     .post(...);

More info: https://docs.oracle.com/javaee/7/api/javax/ws/rs/client/package-summary.html