1
votes

Background I am php & frontend web developer developing an application in Java using Netbeans to read from a websphere (V8.5 I think) JMS queue and then issue commands to appropriate scripts/servers. This is my first major run in with Java for about 10 years so please bear with me. My initial test application runs fine on the server that hosts the jms queue but I have been running into one error after another when trying to connect from a remote location (which at the moment happens to be windows but will be linux in the end). I have been battling through both my lack of experience with Java the process of diagnosing jar issues and locating apparently needed jars from websphere and elsewhere but have finally reached a brick wall. I have seen lots of answers that consist of statements such as "you need the right jar files", but not saying which ones or you need thisone.jar and all the jars that one refers to. I don't know how to find out what jars that should be. I have read posts that say that the process should work with only some of the jars in my library. Am completely stuck...

Error The error which I am having no luck in getting through

 javax.naming.NamingException: Failed to initialize the ORB [Root
 exception is org.omg.CORBA.INITIALIZE: can't instantiate default ORB
 implementation com.ibm.CORBA.iiop.ORB

The full rest of message is this

javax.naming.NamingException: Failed to initialize the ORB [Root exception is
org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation 
com.ibm.CORBA.iiop.ORB  vmcid: 0x0  minor code: 0  completed: No]   
at com.ibm.ws.naming.util.Helpers.getOrb(Helpers.java:314)     
javax.naming.NamingException: Failed to initialize the ORB [Root exception is  org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation  
com.ibm.CORBA.iiop.ORB  vmcid: 0x0  minor code: 0  completed: No]   
at com.ibm.ws.naming.util.WsnInitCtxFactory.getInitialContextInternal(WsnInitCtxFactory.java:384)   
at com.ibm.ws.naming.util.WsnInitCtx.getContext(WsnInitCtx.java:113)    
at com.ibm.ws.naming.util.WsnInitCtx.getContextIfNull(WsnInitCtx.java:428)  
at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:144)    
at javax.naming.InitialContext.lookup(InitialContext.java:411)  
at jmstool2.JmsConn.CreateFactCon(JmsConn.java:101)     
at jmstool2.JmsConn.connect(JmsConn.java:56)    
at jmstool2.Jmstool2.main(Jmstool2.java:20) 
Caused by: org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation com.ibm.CORBA.iiop.ORB  vmcid: 0x0  minor code: 0  completed: No  
at org.omg.CORBA.ORB.create_impl(ORB.java:327)  
at org.omg.CORBA.ORB.init(ORB.java:367)     
at com.ibm.ws.orb.GlobalORBFactory.init(GlobalORBFactory.java:85)   
at com.ibm.ejs.oa.EJSORBImpl.initializeORB(EJSORBImpl.java:174)     
at com.ibm.ejs.oa.EJSClientORBImpl.<init>(EJSClientORBImpl.java:97)     
at com.ibm.ejs.oa.EJSClientORBImpl.<init>(EJSClientORBImpl.java:73)     
at com.ibm.ejs.oa.EJSORB.init(EJSORB.java:386)  
at com.ibm.ws.naming.util.Helpers.getOrb(Helpers.java:305)  ... 8 more 
Caused by: java.lang.NoSuchFieldError: UNKNOWN  
at com.ibm.rmi.util.RepositoryId.createHashString(RepositoryId.java:738)    
at com.ibm.rmi.util.RepositoryId.<clinit>(RepositoryId.java:254)    
at com.ibm.rmi.iiop.CDROutputStream.<clinit>(CDROutputStream.java:1107)     
at com.ibm.rmi.corba.ORB.<init>(ORB.java:281)   at com.ibm.rmi.iiop.ORB.<init>(ORB.java:187)    at com.ibm.CORBA.iiop.ORB.<init>(ORB.java:576)  
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)    
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)     
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:374)
at org.omg.CORBA.ORB.create_impl(ORB.java:325)  ... 15 more

What I am doing I have added the following jars to the library

javax.jms-1.1.jar 
com.ibm.ws.orb_8.5.0.jar 
com.ibm.ws.ejb.thinclient_8.5.0.jar 
com.ibm.was.sib.client.thin.jms_8.5.0.jar 
com.ibm.was.admin.client_8.5.0.jar 
com.ibm.ws.messagingClient.ja

I have also read that the following jars are needed

sibc.jms.jar
sibc.jndi.jar
sibc.orb.jar

I have located these and added them also, although I have also read that these are not needed if you have the thin client I already have.

and am using JDK1.7

context factory: com.ibm.websphere.naming.WsnInitialContextFactory 
Provider URL: corbaloc:iiop:192.168.254.202:2809

The context is being created. But am unable to make the queue factory connection. I can create a socket to the ip address and post using a quick test application.

The Code Here is the class file and all the connectiony bits. It is complete work in progress.

import java.util.Hashtable;
import javax.naming.*;  
import javax.jms.*;
import com.ibm.CORBA.*;
import com.ibm.ws.*; /* 
/**

 * Connection Factory Notes on IBM Websphere
 * 
 * jndi/INConnectionFactory
 * jndi/OUTConnectionFactory 
 * 
 * jndi/INQueue
 * jndi/OUTQueue
 * 
 * jndi/INActivation  
 * jndi/OUTActivation  
 * 
 * websphere server:  192.168.254.202
 * 
 * JMS queued port: 5558  unsecured (MQ)   and 5578 secure
 * JMS Security Port 5557
 * JMS Direct Port: 5559
 * SOAP: 9976
 * //other ports mentioned: 7276 (unsecured) and 7286 (secured)
 * NOTE:  A bootstrap address with no port specification defaults to port 2809
 */
public class JmsConn {
    /*int jmsQueuedPort   = 5558;
    int jmsSecrityPort  = 5557;
    int jmsDirectPort   = 5559;
    int soapPort        = 9976;*/
    int bootstrap       = 2809; //default port
    int bootstrap10     = 2810;
    int unSecPort       = 7276;
    String serverIP     = "192.168.254.202";    
    String scheme       = "corbaloc:iiop:"; //e.g. ws, ldap,iiop, corbaloc:iiop
    String contextFactory   = "com.ibm.websphere.naming.WsnInitialContextFactory";
    String queueInName      = "jndi/INQueue";
    String queueOutName     = "jndi/OUTQueue";
    String outFactory       = "jndi/OUTConnectionFactory";
    String inFactory        = "jndi/INConnectionFactory";
    InitialContext jndiContext;
    ConnectionFactory connectionFactory;
    Connection qConn;
    String providerUrl = scheme+serverIP+":"+bootstrap;
    Session qSession;
    Queue q;


    public void connect() {          
        this.CreateContext();
        this.CreateFactCon(this.outFactory);
        this.getQueue(this.queueOutName);

    }

    public void Lookup(String thingToLookup){
        try{
            System.out.println("Attempting to lookup "+thingToLookup);
        }catch(Exception ex){
            System.out.println("ERROR: Could not perform lookup of  " + thingToLookup +             
                System.lineSeparator() + ex.toString());
           // System.out.println("Lookup Result: " + this.jndiContext.lookup);
            System.exit(3);
        }

    }


    public void CreateContext(){
        try{
            System.out.println("Attempting to create connection context");
            Hashtable env = new Hashtable(); // [jh] in theory this has been superceeded 
              // and should use HashMap
            env.put(Context.INITIAL_CONTEXT_FACTORY,this.contextFactory);
            System.out.println("context factory: "+this.contextFactory);
            System.out.println("Provider URL: "+this.providerUrl);
            env.put(Context.PROVIDER_URL, providerUrl); //+":"+this.jmsDirectPort
            try{
                this.jndiContext = new InitialContext(env);
                //this.jndiContext = new InitialContext();
            }catch(NamingException e){
                System.out.println("ERROR: Could not create JNDI context: " +  
                   System.lineSeparator() + e.toString());
                System.exit(1);
            }

            System.out.println("End of CreateContext.");  

        }catch(Exception exc){
            System.out.println("ERROR in CreateContext: "+exc.toString());
            System.exit(1);

        }
    }

    public void CreateFactCon(String factory){
        try{
            System.out.println("Attmepting to create factory lookup:");
            this.connectionFactory = (ConnectionFactory)this.jndiContext.lookup(factory);


        }catch(NamingException e){
            System.out.println("ERROR: Could not create factory connection:");
            e.printStackTrace(System.err);
            System.out.println(e.toString());
            System.exit(2);
        }
        System.out.println("Lookup successfull:");

        try{
            System.out.println("Attmepting to create connection:");
            this.qConn = this.connectionFactory.createConnection();
            this.qSession = qConn.createSession(false,Session.AUTO_ACKNOWLEDGE);
        }catch(Exception e){
            e.printStackTrace(System.err);
            System.out.println(e.toString());
            System.exit(4);
        }
        System.out.println("Connection successful.");



        System.out.println("End of CreateFactoryConnection.");            
    }


    public void getQueue(String queueName){
        try{
            this.q = (Queue)this.jndiContext.lookup(queueName);
        }catch(Exception e){
             System.out.println("ERROR: Could not get Queue:");
            e.printStackTrace(System.err);
            System.out.println(e.toString());
            System.exit(2);
        }
    }
    }

UPDATE After cutting back the jar files to

com.ibm.ws.orb_8.5.0.jar com.ibm.ws.wjb.thingclient_8.5.0.jar com.ibm.ws.sib.client.thin.jms_8.5.0.jar

the following error is thrown

javax.naming.NamingException: Error getting WsnNameService properties [Root exception is org.omg.CORBA.TRANSIENT: initial and forwarded IOR inaccessible  vmcid: 0x4942f000  minor code: 3591  completed: No]
    at com.ibm.ws.naming.util.WsnInitCtxFactory.mergeWsnNSProperties(WsnInitCtxFactory.java:1552)
    at com.ibm.ws.naming.util.WsnInitCtxFactory.getRootContextFromServer(WsnInitCtxFactory.java:1042)
    at com.ibm.ws.naming.util.WsnInitCtxFactory.getRootJndiContext(WsnInitCtxFactory.java:962)
    at com.ibm.ws.naming.util.WsnInitCtxFactory.getInitialContextInternal(WsnInitCtxFactory.java:614)
    at com.ibm.ws.naming.util.WsnInitCtx.getContext(WsnInitCtx.java:128)
    at com.ibm.ws.naming.util.WsnInitCtx.getContextIfNull(WsnInitCtx.java:765)
    at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:164)
    at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:179)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at jmstool2.JmsConn.CreateFactCon(JmsConn.java:104)
    at jmstool2.JmsConn.connect(JmsConn.java:59)
    at jmstool2.Jmstool2.main(Jmstool2.java:20)
Caused by: org.omg.CORBA.TRANSIENT: initial and forwarded IOR inaccessible  vmcid: 0x4942f000  minor code: 3591  completed: No
    at com.ibm.rmi.corba.ClientDelegate.createRequest(ClientDelegate.java:1250)
    at com.ibm.CORBA.iiop.ClientDelegate.createRequest(ClientDelegate.java:1321)
    at com.ibm.rmi.corba.ClientDelegate.createRequest(ClientDelegate.java:1146)
    at com.ibm.CORBA.iiop.ClientDelegate.createRequest(ClientDelegate.java:1287)
    at com.ibm.rmi.corba.ClientDelegate.request(ClientDelegate.java:1853)
    at com.ibm.CORBA.iiop.ClientDelegate.request(ClientDelegate.java:1243)
    at org.omg.CORBA.portable.ObjectImpl._request(ObjectImpl.java:449)
    at com.ibm.WsnBootstrap._WsnNameServiceStub.getProperties(_WsnNameServiceStub.java:38)
    at com.ibm.ws.naming.util.WsnInitCtxFactory.mergeWsnNSProperties(WsnInitCtxFactory.java:1549)
    ... 11 more
Java Result: 2
2
I have found this, which is actually a close match, but I am not sure as to how this might relate to Netbeans SRC: veithen.github.io/2013/11/11/… Find On Page: org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation com.ibm.CORBA.iiop.ORBJon Holland

2 Answers

3
votes

Check this - Installing and configuring the Thin Client for JMS with WebSphere Application Server.

The only jars you should need for now are:

com.ibm.ws.orb_8.5.0.jar 
com.ibm.was.sib.client.thin.jms_8.5.0.jar 
com.ibm.ws.ejb.thinclient_8.5.0.jar 

so please remove all other from your classpath. And make sure these jars are also in your run classpath, not only during build.

For initial context try the following:

Hastable env = new Hastable();
env.put(Context.PROVIDER_URL,"iiop://localhost:2809");  // if using default ports
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.WsnInitialContextFactory");
InitialContext ctx = new InitialContext(env);
0
votes

Update the /etc/resolv.conf file (on Linux) and add the domain name to the search parameter, letting the OS attempt to resolve the hostname, adding the domain name, and calling the DNS. If the IP address changes over time, your system will continue to be able to resolve the domain-less-hostname to the proper IP address.

E.G.: for hostname "jmsserver"

Content of /etc/resolv.conf:
domain          mydom.com
nameserver      192.168.1.250
search          xyz.com good.com what.ever.ca

If jmsserver is on good.com, the OS will use the DNS and attempt to resolve jmsserver.mydom.com, jmsserver.xyz.com, and will succeed on jmsserver.good.com to obtain the IP address to route to the destination.