Deployment failed due to a keycloak-admin-client dependency - jboss

Question

I've a REST application writen in Java EE (JAX-RS 2.1/Resteasy, EJB, CDI, ...) which has to able to create a keycloak user in the Keycloak 2.5.5. To run my application I use a WildFly 10.1.0 server.
To create the keycloak user I'd like to use an Administration REST API publicated by the Keycloak. Because of that I've added a following dependency to my build.gradle:
compile group: 'org.keycloak', name: 'keycloak-admin-client', version: '3.3.0.Final'
After that (only adding dependency) when I deploy my application on the WildFly, I reveice an error due to:
java.lang.RuntimeException: RESTEASY003190: Could not find constructor for class: org.keycloak.admin.client.resource.RealmsResource
Sometimes due to:
java.lang.RuntimeException: RESTEASY003190: Could not find constructor for class: org.keycloak.admin.client.resource.ServerInfoResource
Here is full stacktrace regarding the first error:
08:14:14,505 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 86) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./myapp: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./myapp: java.lang.RuntimeException: RESTEASY003190: Could not find constructor for class: org.keycloak.admin.client.resource.RealmsResource
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.RuntimeException: RESTEASY003190: Could not find constructor for class: org.keycloak.admin.client.resource.RealmsResource
at org.jboss.resteasy.spi.metadata.ResourceBuilder.constructor(ResourceBuilder.java:692)
at org.jboss.resteasy.plugins.server.resourcefactory.POJOResourceFactory.registered(POJOResourceFactory.java:42)
at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:208)
at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:194)
at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:180)
at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:157)
at org.jboss.resteasy.core.ResourceMethodRegistry.addPerRequestResource(ResourceMethodRegistry.java:76)
at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:409)
at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:250)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:113)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
at io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed(LifecyleInterceptorInvocation.java:117)
at org.wildfly.extension.undertow.security.RunAsLifecycleInterceptor.init(RunAsLifecycleInterceptor.java:78)
at io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed(LifecyleInterceptorInvocation.java:103)
at io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start(ManagedServlet.java:250)
at io.undertow.servlet.core.ManagedServlet.createServlet(ManagedServlet.java:133)
at io.undertow.servlet.core.DeploymentManagerImpl$2.call(DeploymentManagerImpl.java:546)
at io.undertow.servlet.core.DeploymentManagerImpl$2.call(DeploymentManagerImpl.java:517)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:42)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.core.DeploymentManagerImpl.start(DeploymentManagerImpl.java:559)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:101)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:82)
... 6 more
08:14:14,511 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "myapp.war")]) - failure description: {
"WFLYCTL0080: Failed services" => {"jboss.undertow.deployment.default-server.default-host./myapp" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./myapp: java.lang.RuntimeException: RESTEASY003190: Could not find constructor for class: org.keycloak.admin.client.resource.RealmsResource
Caused by: java.lang.RuntimeException: RESTEASY003190: Could not find constructor for class: org.keycloak.admin.client.resource.RealmsResource"},
"WFLYCTL0412: Required services that are not installed:" => ["jboss.undertow.deployment.default-server.default-host./myapp"],
"WFLYCTL0180: Services with missing/unavailable dependencies" => undefined
EDIT:
It could be important, there are dependencies regarding the JAX-RS/Resteasy in a build.gradle:
compile( 'javax:javaee-api:7.0') {
exclude group: 'javax.ws.rs', module: 'javax.ws.rs-api'
}
compile group: 'javax.ws.rs', name: 'javax.ws.rs-api', version: '2.1'
compile group: 'org.jboss.resteasy', name: 'resteasy-servlet-initializer', version: '3.1.4.Final'
//compile group: 'org.jboss.resteasy', name: 'resteasy-jaxrs', version: '3.1.4.Final'
compile group: 'org.jboss.resteasy', name: 'resteasy-jaxb-provider', version: '3.1.4.Final'
compile group: 'org.jboss.resteasy', name: 'resteasy-multipart-provider', version: '3.1.4.Final'
When I use a resteasy-jaxrs lib instead of a resteasy-servlet-initializer, I can deploy the application without any issues but then application's endpoints don't work (not found error).