public static void main(String[] args) throws Exception {
    Context ctx = getInitialContext("localhost", 8080, "admin", "redhat1!");
      ctx.bind("java:/reproducer", "reproducer");
      ctx.rebind("java:/reproducer", "reproducer");
  }


public static Context getInitialContext(String host, Integer port, String username, String password)  throws NamingException {
   Properties props = new Properties();
   props.put(Context.INITIAL_CONTEXT_FACTORY,  "org.wildfly.naming.client.WildFlyInitialContextFactory");
   props.put(Context.PROVIDER_URL, String.format("%s://%s:%d/wildfly-services", "http", host, port));
   if(username != null && password != null) {
      props.put(Context.SECURITY_PRINCIPAL, username);
      props.put(Context.SECURITY_CREDENTIALS, password);
    }
   return new InitialContext(props);
}

Exception in thread "main" javax.naming.NamingException [Root exception is java.io.IOException: WFHTTP000005: Invalid response code 500 (full response ClientResponse{responseHeaders={content-type=[text/html], content-length=[2480], date=[Tue, 12 May 2020 20:55:10 GMT]}, responseCode=500, status='', protocol=HTTP/2.0})]
	at org.wildfly.httpclient.naming.HttpRootContext.performOperation(HttpRootContext.java:442)
	at org.wildfly.httpclient.naming.HttpRootContext.lambda$processInvocation$4(HttpRootContext.java:383)
	at org.wildfly.httpclient.naming.HttpRootContext.performWithRetry(HttpRootContext.java:182)
	at org.wildfly.httpclient.naming.HttpRootContext.processInvocation(HttpRootContext.java:364)
	at org.wildfly.httpclient.naming.HttpRootContext.rebindNative(HttpRootContext.java:146)
	at org.wildfly.naming.client.AbstractContext.rebind(AbstractContext.java:154)
	at org.wildfly.naming.client.AbstractContext.rebind(AbstractContext.java:152)
	at org.wildfly.naming.client.WildFlyRootContext.rebind(WildFlyRootContext.java:195)
	at java.naming/javax.naming.InitialContext.rebind(InitialContext.java:425)
	at org.example.Test.main(Test.java:47)
Caused by: java.io.IOException: WFHTTP000005: Invalid response code 500 (full response ClientResponse{responseHeaders={content-type=[text/html], content-length=[2480], date=[Tue, 12 May 2020 20:55:10 GMT]}, responseCode=500, status='', protocol=HTTP/2.0})
	at org.wildfly.httpclient.common.HttpTargetContext$1$1.lambda$completed$4(HttpTargetContext.java:234)
	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
	at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: javax.naming.OperationNotSupportedException: WFLYNAM0043: Naming context is read-only
        at org.jboss.as.naming.WritableServiceBasedNamingStore.requireOwner(WritableServiceBasedNamingStore.java:163)
        at org.jboss.as.naming.WritableServiceBasedNamingStore.bind(WritableServiceBasedNamingStore.java:69)
        at org.jboss.as.naming.NamingContext.bind(NamingContext.java:262)
        at org.jboss.as.naming.NamingContext.bind(NamingContext.java:289)
        at org.wildfly.httpclient.naming.HttpRemoteNamingService$BindHandler.doOperation(HttpRemoteNamingService.java:237)
        at org.wildfly.httpclient.naming.HttpRemoteNamingService$BindHandler.doOperation(HttpRemoteNamingService.java:227)