java - Connection to Weblogic JMS Queue fails -

i trying write message jms queue running on weblogic java.rmi.connectioexception when trying connect eclipse program.

    javax.naming.communicationexception [root exception java.rmi.connectioexception: error during jrmp connection establishment; nested exception is:      java.io.eofexception]     @ weblogic.jrmp.context.lookup(context.java:189)     @ weblogic.jrmp.context.lookup(context.java:195)     @ javax.naming.initialcontext.lookup(unknown source)     @ example.jms.queue.jmssender.sendmessage(jmssender.java:42)     @ example.jms.queue.jmssender.main(jmssender.java:130) caused by: java.rmi.connectioexception: error during jrmp connection establishment; nested exception is:      java.io.eofexception     @ sun.rmi.transport.tcp.tcpchannel.createconnection(unknown source)     @ sun.rmi.transport.tcp.tcpchannel.newconnection(unknown source)     @ sun.rmi.server.unicastref.newcall(unknown source)     @ weblogic.jrmp.baseremoteref.invoke(baseremoteref.java:221)     @ weblogic.jrmp.registryimpl_stub.lookup(unknown source)     @ weblogic.jrmp.context.lookup(context.java:185)     ... 4 more caused by: java.io.eofexception     @ java.io.datainputstream.readbyte(unknown source)     ... 10 more exception in thread "main" java.lang.nullpointerexception     @ example.jms.queue.jmssender.sendmessage(jmssender.java:47)     @ example.jms.queue.jmssender.main(jmssender.java:130) 

below client program

package example.jms.queue;  import java.io.bufferedreader; import java.io.ioexception; import java.io.inputstreamreader; import java.util.hashtable; import javax.jms.*; import javax.naming.context; import javax.naming.initialcontext; import javax.naming.namingexception;  /** example shows how establish connection * , send messages jms queue. classes in * package operate on same jms queue. run classes * witness messages being sent , received, , browse queue * messages. class used send messages queue. * * @author copyright (c) 1999-2005 bea systems, inc. rights reserved. */ public class queuesend {  // defines jndi context factory.  public final static string jndi_factory="weblogic.jndi.wlinitialcontextfactory";   // defines jms context factory.  public final static string jms_factory="jms/testconnectionfactory";   // defines queue.  public final static string queue="jms/testjmsqueue";   private queueconnectionfactory qconfactory;  private queueconnection qcon;  private queuesession qsession;  private queuesender qsender;  private queue queue;  private textmessage msg;   /**   * creates necessary objects sending   * messages jms queue.   *   * @param ctx jndi initial context   * @param queuename name of queue   * @exception namingexception if operation cannot performed   * @exception jmsexception if jms fails initialize due internal error   */  public void init(context ctx, string queuename)     throws namingexception, jmsexception  {      system.out.println("1");     qconfactory = (queueconnectionfactory) ctx.lookup(jms_factory);     system.out.println("1");     qcon = qconfactory.createqueueconnection();     system.out.println("1");     qsession = qcon.createqueuesession(false, session.auto_acknowledge);     system.out.println("1");     queue = (queue) ctx.lookup(queuename);     qsender = qsession.createsender(queue);     msg = qsession.createtextmessage();     qcon.start();  }   /**   * sends message jms queue.   *   * @param message  message sent   * @exception jmsexception if jms fails send message due internal error   */  public void send(string message) throws jmsexception {     msg.settext(message);     qsender.send(msg);  }   /**   * closes jms objects.   * @exception jmsexception if jms fails close objects due internal error   */  public void close() throws jmsexception {     qsender.close();     qsession.close();     qcon.close();  } /** main() method.  *  * @param args weblogic server url  * @exception exception if operation fails  */  public static void main(string[] args) throws exception {       try{          string url = "t3://localhost:7001";             url = "http://127.0.0.1:7001/testconnectionfactory/testjmsqueue";             //t://localhost:7001/connfact/queuename             initialcontext ic = getinitialcontext(url);             system.out.println("hello");             //system.out.println("context----" + ic.lookup(url));             queuesend qs = new queuesend();             system.out.println("initializing");             qs.init(ic, queue);             system.out.println("sending");             readandsend(qs);             system.out.println("sent");             qs.close();      }catch(exception ex){          ex.printstacktrace();      }   }   private static void readandsend(queuesend qs)     throws ioexception, jmsexception  {      string line="test string 123";      // line = msgstream.readline();         qs.send(line);    }   private static initialcontext getinitialcontext(string url)     throws namingexception  {     hashtable env = new hashtable();     env.put(context.initial_context_factory, jndi_factory);     env.put(context.provider_url, url);     return new initialcontext(env);  } } 

i have taken code oracle blog (https://blogs.oracle.com/soaproactive/entry/jms_step_2_using_the)

i see exception context lookup failing, cant suspect why ?

i fixed this. problem because of unwanted jars had added project. had added weblogic jars project. later removed jars , left wlclient.jar, wljmsclient.jar. suspected jar conflict while reading article on https://redstack.wordpress.com/2009/12/21/a-simple-jms-client-for-weblogic-11g/.