Hi, I have looked around on Google for a while now but I can't seem to figure out my problem. I mostly used the Gist from Github here to get started: https://gist.github.com/thomasdarimont/43689aefb37540624e35 After things were not really working out, I tried some other stuff that you can find below: I am trying to use the Keycloak admin client in Java, version 5.0.0. My POM contains the following: <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <keycloak.version>5.0.0</keycloak.version> <resteasy.version>3.1.3.Final</resteasy.version> <jackson.version>2.9.8</jackson.version> </properties> <dependencies> <dependency> <groupId>org.keycloak</groupId> <artifactId>keycloak-admin-client</artifactId> <version>${keycloak.version}</version> </dependency> <dependency> <groupId>org.jboss.resteasy</groupId> <artifactId>resteasy-client</artifactId> <version>${resteasy.version}</version> </dependency> <dependency> <groupId>org.jboss.resteasy</groupId> <artifactId>resteasy-jackson2-provider</artifactId> <version>${resteasy.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.jaxrs</groupId> <artifactId>jackson-jaxrs-json-provider</artifactId> <version>${jackson.version}</version> </dependency> </dependencies> When I add the following code, building the keycloak client fails: Keycloak keycloak = KeycloakBuilder.builder().serverUrl("localhost:8080/auth").realm("master") .username("admin").password("admin").clientId("admin-cli").build(); System.out.println(keycloak.serverInfo().getInfo().toString()); Produces the following exception: java -jar .\keycloak-admin-0.0.1-SNAPSHOT.jar Exception in thread "main" java.lang.IllegalArgumentException: RESTEASY003720: path param realm has not been provided by the parameter map at org.jboss.resteasy.specimpl.ResteasyUriBuilder.replaceParameter(ResteasyUriBuilder.java:659) at org.jboss.resteasy.specimpl.ResteasyUriBuilder.buildString(ResteasyUriBuilder.java:581) at org.jboss.resteasy.specimpl.ResteasyUriBuilder.buildFromValues(ResteasyUriBuilder.java:780) at org.jboss.resteasy.specimpl.ResteasyUriBuilder.build(ResteasyUriBuilder.java:772) at org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.getUri(ClientWebTarget.java:107) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.createRequest(ClientInvoker.java:124) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:104) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) at com.sun.proxy.$Proxy15.grantToken(Unknown Source) at org.keycloak.admin.client.token.TokenManager.grantToken(TokenManager.java:89) at org.keycloak.admin.client.token.TokenManager.getAccessToken(TokenManager.java:69) at org.keycloak.admin.client.token.TokenManager.getAccessTokenString(TokenManager.java:64) at org.keycloak.admin.client.resource.BearerAuthFilter.filter(BearerAuthFilter.java:52) at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:431) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:105) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) at com.sun.proxy.$Proxy17.getInfo(Unknown Source) When using the Keycloak.getInstance method, I get another exception: Keycloak keycloak = Keycloak.getInstance("http://localhost:8080/auth", "master", "admin", "admin", "admin-cli"); Produces exception: Exception in thread "main" javax.ws.rs.client.ResponseProcessingException: javax.ws.rs.ProcessingException: RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.extractResult(ClientInvocation.java:156) at org.jboss.resteasy.client.jaxrs.internal.proxy.extractors.BodyEntityExtractor.extractEntity(BodyEntityExtractor.java:60) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:107) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) at com.sun.proxy.$Proxy15.grantToken(Unknown Source) at org.keycloak.admin.client.token.TokenManager.grantToken(TokenManager.java:89) at org.keycloak.admin.client.token.TokenManager.getAccessToken(TokenManager.java:69) at org.keycloak.admin.client.token.TokenManager.getAccessTokenString(TokenManager.java:64) at org.keycloak.admin.client.resource.BearerAuthFilter.filter(BearerAuthFilter.java:52) at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:431) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:105) at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) at com.sun.proxy.$Proxy17.getInfo(Unknown Source) at test.KeycloakAdmin.main(MyMain.java:17) Caused by: javax.ws.rs.ProcessingException: RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse at org.jboss.resteasy.core.interception.jaxrs.ClientReaderInterceptorContext.throwReaderNotFound(ClientReaderInterceptorContext.java:42) at org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.getReader(AbstractReaderInterceptorContext.java:80) at org.jboss.resteasy.core.interception.jaxrs.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:53) at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:266) at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readEntity(ClientResponse.java:196) at org.jboss.resteasy.specimpl.BuiltResponse.readEntity(BuiltResponse.java:212) at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.extractResult(ClientInvocation.java:120) ... 13 more Can someone share insight on how to use the keycloak admin client library in the most recent version? Which dependencies do I need inside of my pom? Thanks! _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user