RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse

Question

I\'m trying to test Keycloak REST API. Instaled the version 2.1.0.Final. I can access the admin through browser with SSL without problems.

I\'m using the code above:

Answer 1

I had the problem, that MatteoM pointed out. I solved with maven-shade-plugin and the transformes tag. Maybe it helps someone.

 
            org.apache.maven.plugins
            maven-shade-plugin
            3.2.0
            
                
                    package
                    
                        shade
                    
                    
                        
                            
                                *:*
                                
                                    META-INF/*.SF
                                    META-INF/*.DSA
                                    META-INF/*.RSA
                                
                            
                        
                        
                            
                                
                                    de.example.MainClass
                                    1.8
                                    1.8
                                
                            
                            
                                META-INF/services/javax.ws.rs.ext.Providers
                            
                        
                        
                        ${project.build.directory}/${project.artifactId}-${project.version}-fat.jar