Hi David: That worked!

xnio-nio-3.4.3.Final.jar

xnio-api-3.4.6.Final.jar

And it’s the end of a long road that began with my program throwing the infamous NoSuchMethodError because of the wrong versions of jboss related jars, then No XNIO provider found , then XNIO001001: No XNIO provider found, then the AbstractMethodError: org.xnio.Xnio.createWorker() above.

So just in case it helps anyone just starting with Wildfly, here are:

--- All the jars in the path that allowed my Class's constructor to finally obtain an InitialContext from a Wildfly-10.0.1 version running locally

--- My Code (It only consists of the Properties I used and one line instantiating a new IniticalContext with them, and

--- Console output from a successfully run.  (Note: I have my own helper methods to format the output, like P() below. But I left most of them out of the code to keep it clean.)

JARS:

(No guarantee they are all required. Next step is to remove them all and run it to determine exactly which are needed, and which are artifacts left over from all the experimentation needed to get here)

jboss-ejb-client-1.0.19.final.jar

jboss-sasl-1.0.4.Final.jar

jboss-transaction-api_1.2_spec-1.0.0.Final.jar

wildfly-build-config-8.2.1.Final.jar

jboss-ejb-api_3.2_spec-1.0.0.Final.jar

jboss-logging-3.1.4.GA.jar

jboss-marshalling-1.4.9.Final.jar

jboss-marshalling-river-1.4.9.Final.jar

jboss-remote-naming-2.0.1.Final.jar

jboss-remoting-3.2.7.ga.jar

xnio-api-3.4.6.Final.jar

xnio-nio-3.4.3.Final.jar

RELEVANT CODE:

//Note: P()function is just a helper method I used to format the console output below.

//members

final private Properties env = new Properties() {

  {put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory"); 

   put(Context.PROVIDER_URL, "http-remoting://localhost:9990");

   put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");

   put(Context.SECURITY_PRINCIPAL, "guest"); 

   put(Context.SECURITY_CREDENTIALS, "guest");

   put("jboss.naming.client.ejb.context", true); 

  }

};

//constructor

   private JmsTestGetJNDIContext (){

     try {

       Context ctx = new InitialContext(this.env);

       P (sp + iAm, "JNDI Context: " + ctx);

     } catch (CommunicationException e) {

       P (sp + iAm, "You forgot to start WildFly dummy!");      

     } catch (Exception e) {

       P (sp + iAm, "caught:  " + e.getClass().getName());

       P (sp + iAm, e.getMessage());

       e.printStackTrace();

       P (iAm, "end");

     }

   }

CONSOLE OUTPUT:

JmsTestGetJNDIContext.main ()                beg

  JmsTestGetJNDIContext.<init> ()              beg

    JmsTestGetJNDIContext.<init> ()              These are Properties used to obtain IntialContext

      "java.naming.provider.url"                   "http-remoting://localhost:9990"

      "java.naming.factory.initial" "org.jboss.naming.remote.client.InitialContextFactory"

      "jboss.naming.client.ejb.context"            "true"

      "java.naming.security.principal"             "guest"

      "java.naming.factory.url.pkgs" "org.jboss.ejb.client.naming"

      "java.naming.security.credentials"           "guest"

    JmsTestGetJNDIContext.<init> ()              Requesting InitialContext

Aug 01, 2017 8:32:36 AM org.xnio.Xnio <clinit>

INFO: XNIO version 3.4.6.Final

Aug 01, 2017 8:32:36 AM org.xnio.nio.NioXnio <clinit>

INFO: XNIO NIO Implementation Version 3.4.3.Final

Aug 01, 2017 8:32:36 AM org.jboss.remoting3.EndpointImpl <clinit>

INFO: JBoss Remoting version 3.2.7.GA

    JmsTestGetJNDIContext.<init> ()              JNDI Context: javax.naming.InitialContext@3551a94

  JmsTestGetJNDIContext.<init> ()              end

JmsTestGetJNDIContext.main ()                end