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Migration Guide 2.8

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Clement Escoffier edited this page Aug 25, 2022 · 19 revisions

RESTEasy Reactive by default

RESTEasy Reactive is now our default REST layer. It supports equally well reactive and traditional blocking workloads.

Note that RESTEasy Classic is still around so you don't have to migrate your projects to RESTEasy Reactive if you are not inclined to do so.

One other important change is that we don't force a REST layer on you when creating apps: prior to 2.8, we were automatically adding the RESTEasy extension when creating new projects in a lot of cases. This is not the case anymore:

  • If you create an application with no extensions (and with code examples enabled, which is the default), we will add RESTEasy Reactive automatically to show what a REST Quarkus application looks like.
  • If you have defined at least one extension, we will consider you want to specify the extensions explicitly and we won't force RESTEasy Reactive on you.

If you want a REST layer in your applications, add resteasy-reactive to the set of extensions you select, or most probably resteasy-reactive-jackson.

To learn more about RESTEasy Reactive, see:

quarkus-resteasy-mutiny deprecated

RESTEasy Reactive supports reactive programming via Mutiny in far more comprehensive manner that classic RESTEasy, so users of quarkus-resteasy-mutiny are encouraged to switch to RESTEasy Reactive.

quarkus-undertow-websockets is gone

The long time deprecated quarkus-undertow-websockets legacy extension is now removed. Use quarkus-websockets instead.

Assertj moved out of the BOM

We had frequent problems with Assertj binary compatibility (running tests compiled with an older version didn't work well with the version enforced in the BOM) so we decided to move Assertj outside of the Quarkus BOM.

That means you will have to define the version of Assertj in your own POM:

<dependency>
    <groupId>org.assertj</groupId>
    <artifactId>assertj-core</artifactId>
    <version>3.22.0</version>
</dependency>

quarkus.datasource.devservices removed

Long time deprecated quarkus.datasource.devservices config property has been removed. Use quarkus.datasource.devservices.enabled instead.

Hibernate ORM MariaDB Dialect updated to 10.6

Hibernate ORM is now using org.hibernate.dialect.MariaDB106Dialect by default. If you are working with MariaDB 10.3, 10.4 or 10.5 you should configure the following:

quarkus.hibernate-orm.dialect=org.hibernate.dialect.MariaDB103Dialect

OpenTracing

Some OpenTracing libraries code was moved to SmallRye OpenTracing due to lack of maintenance in the upstream projects:

These are now removed from the Quarkus BOM and available in io.smallrye:smallrye-opentracing-contrib (included transitively with the Quarkus OpenTracing Extension).

OpenTelemetry

  • Static resources are not traced automatically anymore. To revert to the old behavior, please use the configuration quarkus.opentelemetry.tracer.include-static-resources=true.
  • HTTP Span names now include a leading slash. This aligns with the OpenTelemetry Semantic conventions for HTTP spans and the http.route tag.

Qute

A null parameter of a loop section is treated as an empty iterable, smilarly as a null value is handled by an output expression. Previously a null parameter resulted in a TemplateException at runtime.

{#for item in items} <1>
 {item.name}
{/for}

<1> If items is resolved to null then nothing is rendered. Previously, a TemplateException was thrown at runtime.

REST Client Reactive ReactiveClientHeadersFactory method change

To align with ClientHeadersFactory, the getHeaders method now accepts clientOutgoingHeaders map as the second parameter. This parameter is a read-only map of header parameters specified on the client interface. After the change the signature of the method is:

public abstract Uni<MultivaluedMap<String, String>> getHeaders(MultivaluedMap<String, String> incomingHeaders,
            MultivaluedMap<String, String> clientOutgoingHeaders);

Scheduler

Subclasses do not inherit the metadata of a @Scheduled method declared on a superclass anymore. The old behavior was undocumented and inconsistent; e.g. if Scheduled#identity() was used and the method was inherited then the build failed.

In the following example, the everySecond() method is only invoked upon the instance of Jobs.

class Jobs {
   @Scheduled(every = "1s")
   void everySecond() {
     // ..do something 
   }
}
@Singleton
class MyJobs extends Jobs {
}

Stork extension properties config moved to the quarkus namespace

Stork extension configuration is now aligned with the rest of extensions. Properties are now configured under the quarkus namespace. For configuring service discovery and load balancer strategies in the Stork extension, you can now use:

quarkus.stork.my-service.service-discovery.type=consul
quarkus.stork.my-service.service-discovery.consul-host=localhost
quarkus.stork.my-service.service-discovery.consul-port=8500

quarkus.stork.my-service.load-balancer.type=least-response-time
quarkus.stork.my-service.load-balancer.use-secure-random=true

If a service discovery and load balancer providers want to use the same type name, the implementation must be in different packages.

DevServices for Keycloak use Keycloak Quarkus distribution by default

DevServices for Keycloak now use a Quarkus-based Keycloak distribution by default. The default image name is currently quay.io/keycloak/keycloak:17.0.1. If you'd like to use a WildFly-based Keycloak distribution then use a quay.io/keycloak/keycloak:17.0.1-legacy image name. Please note the version such as 17.0.1 will keep changing going forward.

If you have to use an older WildFly-based Keycloak distributions then please set quarkus.keycloak.devservices.keycloak-x-image=false

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