Hi. I'm trying to realize a simple java client, which calls a stateless session bean running in WildFly 13 via JNDI.

The client looks like this:

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import de.jexam.server.TestMgrRemote;

public class TestClient {
    public static void main(String[] args) {
        try {
            TestMgrRemote r = lookupTestMgrBean();
            r.test();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static TestMgrRemote lookupTestMgrBean() throws NamingException {
        Context ctx = createInitialContext();
        return (TestMgrRemote) ctx.lookup("ejb:/jexam-server-ejb//TestMgr!de.jexam.server.TestMgrRemote");
    }

    private static Context createInitialContext() throws NamingException {
        Hashtable<string, object=""> env = new Hashtable<>();
        env.put(Context.INITIAL_CONTEXT_FACTORY, "org.wildfly.naming.client.WildFlyInitialContextFactory");
        env.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
        env.put(Context.PROVIDER_URL, "remote+http://127.0.0.1:8080");
        InitialContext ctx = new InitialContext(env);
        return ctx;
    }
}

The pom.xml looks like this:

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>de.jexam.server</groupId>
        <artifactId>jexam-server</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>jexam-client</artifactId>
    <name>jexam-client</name>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.wildfly</groupId>
                <artifactId>wildfly-ejb-client-bom</artifactId>
                <version>12.0.0.Final</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>de.jexam.server</groupId>
            <artifactId>jexam-server-ejb</artifactId>
            <version>0.0.1-SNAPSHOT</version>
            <type>ejb</type>
        </dependency>


        <dependency>
            <groupId>org.wildfly</groupId>
            <artifactId>wildfly-naming-client</artifactId>
            <version>1.0.9.Final</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <!-- enforce Java 8 -->
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

I also added a META-INF/wildfly-config.xml, which looks like this:

 <configuration>  
    <authentication-client xmlns="urn:elytron:1.0">  
        <authentication-rules>  
            <rule use-configuration="default"/>  
        </authentication-rules>  
        <authentication-configurations>  
            <configuration name="default">  
                <set-user-name name="appuser"/>  
                <credentials>  
                    <clear-password password="apppwd"/>  
                </credentials>  
            </configuration>  
        </authentication-configurations>  
    </authentication-client>  
    <jboss-ejb-client xmlns="urn:jboss:wildfly-client-ejb:3.0">  
        <connections>  
            <connection uri="remote+http://127.0.0.1:8080" />  
        </connections>  
    </jboss-ejb-client>  
</configuration>

Running the client gives me an OperationNotSupportedException. The client log looks like this:

Jul 03, 2018 4:05:36 PM org.wildfly.naming.client.Version 
INFO: WildFly Naming version 1.0.9.Final
Jul 03, 2018 4:05:36 PM org.wildfly.security.Version 
INFO: ELY00001: WildFly Elytron version 1.1.0.Final
Jul 03, 2018 4:05:36 PM org.xnio.Xnio 
INFO: XNIO version 3.5.1.Final
Jul 03, 2018 4:05:36 PM org.xnio.nio.NioXnio 
INFO: XNIO NIO Implementation Version 3.5.1.Final
Jul 03, 2018 4:05:37 PM org.jboss.remoting3.EndpointImpl 
INFO: JBoss Remoting version 5.0.0.Final
javax.naming.OperationNotSupportedException: WFNAM00026: No provider for found for URI: ejb
    at org.wildfly.naming.client.WildFlyRootContext.getProviderContext(WildFlyRootContext.java:811)
    at org.wildfly.naming.client.WildFlyRootContext.lookup(WildFlyRootContext.java:140)
    at javax.naming.InitialContext.lookup(Unknown Source)
    at TestClient.lookupTestMgrBean(TestClient.java:22)
    at TestClient.main(TestClient.java:12)

What's my mistake?