Argthtjtr

I am trying to run the following example for a quite sometime in eclipse.

https://github.com/jboss-developer/jboss-eap-quickstarts/tree/master/ejb-remote

I have created an ejb project and imported all the class files and put .properties files in META-INF. now there is no error in code and ejbs are deployed on JBoss server successfully. When I try to run RemoteEJBClient.java, I am getting following exception, which I am not able to fix.

Exception in thread "main" javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial

    at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)

    at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)

    at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source)

    at javax.naming.InitialContext.lookup(Unknown Source)

    at org.jboss.as.quickstarts.ejb.remote.client.RemoteEJBClient.lookupRemoteStatelessCalculator(RemoteEJBClient.java:131)

    at org.jboss.as.quickstarts.ejb.remote.client.RemoteEJBClient.invokeStatelessBean(RemoteEJBClient.java:50)

    at org.jboss.as.quickstarts.ejb.remote.client.RemoteEJBClient.main(RemoteEJBClient.java:37)

please help me in sort out this issue

main standalone class:

/*

 * JBoss, Home of Professional Open Source

 * Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual

 * contributors by the @authors tag. See the copyright.txt in the

 * distribution for a full listing of individual contributors.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 * http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package org.jboss.as.quickstarts.ejb.remote.client;



import org.jboss.as.quickstarts.ejb.remote.stateful.RemoteCounter;

import org.jboss.as.quickstarts.ejb.remote.stateless.RemoteCalculator;



import javax.naming.Context;

import javax.naming.InitialContext;

import javax.naming.NamingException;

import java.util.Hashtable;



/**

 * A sample program which acts a remote client for a EJB deployed on AS7 server.

 * This program shows how to lookup stateful and stateless beans via JNDI and

 * then invoke on them

 * 

 * @author Jaikiran Pai

 */

public class RemoteEJBClient {



    public static void main(String args) throws Exception {

        // Invoke a stateless bean

        invokeStatelessBean();



        // Invoke a stateful bean

        // invokeStatefulBean();

    }



    /**

     * Looks up a stateless bean and invokes on it

     * 

     * @throws NamingException

     */

    private static void invokeStatelessBean() throws NamingException {

        // Let's lookup the remote stateless calculator

        final RemoteCalculator statelessRemoteCalculator = lookupRemoteStatelessCalculator();

        System.out

                .println("Obtained a remote stateless calculator for invocation");

        // invoke on the remote calculator

        int a = 204;

        int b = 340;

        System.out

                .println("Adding "

                        + a

                        + " and "

                        + b

                        + " via the remote stateless calculator deployed on the server");

        int sum = statelessRemoteCalculator.add(a, b);

        System.out.println("Remote calculator returned sum = " + sum);

        if (sum != a + b) {

            throw new RuntimeException(

                    "Remote stateless calculator returned an incorrect sum "

                            + sum + " ,expected sum was " + (a + b));

        }

        // try one more invocation, this time for subtraction

        int num1 = 3434;

        int num2 = 2332;

        System.out

                .println("Subtracting "

                        + num2

                        + " from "

                        + num1

                        + " via the remote stateless calculator deployed on the server");

        int difference = statelessRemoteCalculator.subtract(num1, num2);

        System.out.println("Remote calculator returned difference = "

                + difference);

        if (difference != num1 - num2) {

            throw new RuntimeException(

                    "Remote stateless calculator returned an incorrect difference "

                            + difference + " ,expected difference was "

                            + (num1 - num2));

        }

    }



    /**

     * Looks up a stateful bean and invokes on it

     * 

     * @throws NamingException

     */

    private static void invokeStatefulBean() throws NamingException {

        // Let's lookup the remote stateful counter

        final RemoteCounter statefulRemoteCounter = lookupRemoteStatefulCounter();

        System.out.println("Obtained a remote stateful counter for invocation");

        // invoke on the remote counter bean

        final int NUM_TIMES = 5;

        System.out.println("Counter will now be incremented " + NUM_TIMES

                + " times");

        for (int i = 0; i < NUM_TIMES; i++) {

            System.out.println("Incrementing counter");

            statefulRemoteCounter.increment();

            System.out.println("Count after increment is "

                    + statefulRemoteCounter.getCount());

        }

        // now decrementing

        System.out.println("Counter will now be decremented " + NUM_TIMES

                + " times");

        for (int i = NUM_TIMES; i > 0; i--) {

            System.out.println("Decrementing counter");

            statefulRemoteCounter.decrement();

            System.out.println("Count after decrement is "

                    + statefulRemoteCounter.getCount());

        }

    }



    /**

     * Looks up and returns the proxy to remote stateless calculator bean

     * 

     * @return

     * @throws NamingException

     */

    private static RemoteCalculator lookupRemoteStatelessCalculator()

            throws NamingException {

        final Hashtable jndiProperties = new Hashtable();

        jndiProperties.put(Context.URL_PKG_PREFIXES,

                "org.jboss.ejb.client.naming");



        /*

         * remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=

         * false

         * 

         * remote.connections=default

         * 

         * remote.connection.default.host=localhost

         * remote.connection.default.port = 4447

         * remote.connection.default.connect

         * .options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false

         */

        jndiProperties

                .put("remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED",

                        false);

        jndiProperties.put("remote.connections", "default");

        jndiProperties.put("remote.connection.default.host", "localhost");

        jndiProperties.put("remote.connection.default.port", "4447");

        jndiProperties.put("remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS",false);



        final Context context = new InitialContext(jndiProperties);



        // The JNDI lookup name for a stateless session bean has the syntax of:

        // ejb:<appName>/<moduleName>/<distinctName>/<beanName>!<viewClassName>

        //

        // <appName> The application name is the name of the EAR that the EJB is

        // deployed in

        // (without the .ear). If the EJB JAR is not deployed in an EAR then

        // this is

        // blank. The app name can also be specified in the EAR's

        // application.xml

        //

        // <moduleName> By the default the module name is the name of the EJB

        // JAR file (without the

        // .jar suffix). The module name might be overridden in the ejb-jar.xml

        //

        // <distinctName> : AS7 allows each deployment to have an (optional)

        // distinct name.

        // This example does not use this so leave it blank.

        //

        // <beanName> : The name of the session been to be invoked.

        //

        // <viewClassName>: The fully qualified classname of the remote

        // interface. Must include

        // the whole package name.



        // let's do the lookup

        return (RemoteCalculator) context

                .lookup("java:global/ejb-remote/CalculatorBean!org.jboss.as.quickstarts.ejb.remote.stateless.RemoteCalculator");

    }



    /**

     * Looks up and returns the proxy to remote stateful counter bean

     * 

     * @return

     * @throws NamingException

     */

    private static RemoteCounter lookupRemoteStatefulCounter()

            throws NamingException {

        final Hashtable jndiProperties = new Hashtable();

        jndiProperties.put(Context.URL_PKG_PREFIXES,

                "org.jboss.ejb.client.naming");

        final Context context = new InitialContext(jndiProperties);



        // The JNDI lookup name for a stateful session bean has the syntax of:

        // ejb:<appName>/<moduleName>/<distinctName>/<beanName>!<viewClassName>?stateful

        //

        // <appName> The application name is the name of the EAR that the EJB is

        // deployed in

        // (without the .ear). If the EJB JAR is not deployed in an EAR then

        // this is

        // blank. The app name can also be specified in the EAR's

        // application.xml

        //

        // <moduleName> By the default the module name is the name of the EJB

        // JAR file (without the

        // .jar suffix). The module name might be overridden in the ejb-jar.xml

        //

        // <distinctName> : AS7 allows each deployment to have an (optional)

        // distinct name.

        // This example does not use this so leave it blank.

        //

        // <beanName> : The name of the session been to be invoked.

        //

        // <viewClassName>: The fully qualified classname of the remote

        // interface. Must include

        // the whole package name.



        // let's do the lookup

        return (RemoteCounter) context

                .lookup("ejb:/jboss-ejb-remote-server-side/CounterBean!"

                        + RemoteCounter.class.getName() + "?stateful");

    }

}

jboss-ejb-client.properties

#

# JBoss, Home of Professional Open Source

# Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual

# contributors by the @authors tag. See the copyright.txt in the

# distribution for a full listing of individual contributors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

# http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#



remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false



remote.connections=default



remote.connection.default.host=localhost

remote.connection.default.port = 4447

remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false

running pom.xml, is also full of errors. which probably is saying that jboss provided pom.xml will not work also

[ERROR] Non-resolvable import POM: Failure to find org.jboss.spec:jboss-javaee-6.0:pom:3.0.2.Final-redhat-4 in http://repo.maven.apache.
org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or update
s are forced @ line 72, column 22 -> [Help 2]
[ERROR] Non-resolvable import POM: Failure to find org.jboss.as:jboss-as-ejb-client-bom:pom:7.2.1.Final-redhat-10 in http://repo.maven.a
pache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or
updates are forced @ line 80, column 22 -> [Help 2]
[ERROR] 'dependencies.dependency.version' for org.jboss.spec.javax.transaction:jboss-transaction-api_1.1_spec:jar is missing. @ line 94,
column 19
[ERROR] 'dependencies.dependency.version' for org.jboss.spec.javax.ejb:jboss-ejb-api_3.1_spec:jar is missing. @ line 102, column 19
[ERROR] 'dependencies.dependency.version' for org.jboss:jboss-ejb-client:jar is missing. @ line 118, column 20
[ERROR] 'dependencies.dependency.version' for org.jboss.xnio:xnio-api:jar is missing. @ line 125, column 20
[ERROR] 'dependencies.dependency.version' for org.jboss.xnio:xnio-nio:jar is missing. @ line 131, column 20
[ERROR] 'dependencies.dependency.version' for org.jboss.remoting3:jboss-remoting:jar is missing. @ line 138, column 20
[ERROR] 'dependencies.dependency.version' for org.jboss.sasl:jboss-sasl:jar is missing. @ line 145, column 21
[ERROR] 'dependencies.dependency.version' for org.jboss.marshalling:jboss-marshalling-river:jar is missing. @ line 152, column 21
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException

Your EJB client is a java standalone, therefore, in order to connect to JNDI service and lookup the ejb reference you need to provide some configuration to the InitialContext object.

The exception is telling you that this configuration is not provided, so the InitialContext instance can't be created.

Here you can see (in general terms) how to set InitialConext properties. Takes in mind that this configuration is vendor-dependet.

Searching through the tutorial, I can see a file that seems to contains the properties suitable for this tutorial. I seems to be that this file is no available to RemoteEJBClient.java class.