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ejb client and naming error - problem
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created by <a href="https://community.jboss.org/people/darisz">Dariusz Kominek</a> in <i>EJB3</i> - <a href="https://community.jboss.org/message/776774#776774">View the full discussion</a>
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<div class="jive-rendered-content"><p><strong>I'm very beginner in ejb programming so please don't be angry if the question is easy.</strong></p><p><strong>Below is a code I wrote and it produces an error. What should I change to get this to work? I work with Eclipse Juno and JBoss 7.1.1. Below example should work for </strong></p><p>Application Server - JBoss 4.2.2 GA</p><p>IDE - Eclipse 3.4.1</p><p><strong>It doesn't work for my environment. Any help will be appreciated.</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]</p><p> at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:674)</p><p> at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)</p><p> at javax.naming.InitialContext.init(InitialContext.java:242)</p><p> at javax.naming.InitialContext.<init>(InitialContext.java:216)</p><p> at MyBeanClient.main(MyBeanClient.java:13)</p><p>Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory</p><p> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)</p><p> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)</p><p> at java.security.AccessController.doPrivileged(Native Method)</p><p> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)</p><p> at java.lang.ClassLoader.loadClass(ClassLoader.java:423)</p><p> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)</p><p> at java.lang.ClassLoader.loadClass(ClassLoader.java:356)</p><p> at java.lang.Class.forName0(Native Method)</p><p> at java.lang.Class.forName(Class.java:264)</p><p> at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:63)</p><p> at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:671)</p><p> ... 4 more</p><p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p><p><strong>IMyBean.java</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">import java.io.Serializable;</span></p><p><span style="background-color: #cccccc;">public interface IMyBean extends Serializable { </span></p><p><span style="background-color: #cccccc;">public void doSomething();</span></p><p><span style="background-color: #cccccc;">}</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>MyBeanRemote.java</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">import javax.ejb.Remote;</span></p><p><span style="background-color: #cccccc;">@Remote</span></p><p><span style="background-color: #cccccc;">public interface MyBeanRemote extends IMyBean{</span></p><p><span style="background-color: #cccccc;">}</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>MyBeanLocal.java</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">import javax.ejb.Local;</span></p><p><span style="background-color: #cccccc;">@Local</span></p><p><span style="background-color: #cccccc;">public interface MyBeanLocal extends IMyBean {</span></p><p><span style="background-color: #cccccc;">}</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>MyBean.java</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">import javax.ejb.Stateless;</span></p><p><span style="background-color: #cccccc;">@Stateless </span></p><p><span style="background-color: #cccccc;">public class MyBean implements MyBeanLocal, MyBeanRemote {</span></p><p><span style="background-color: #cccccc;">private static final long serialVersionUID = 9184424076718418234L;</span></p><p><span style="background-color: #cccccc;">public void doSomething() {</span></p><p><span style="background-color: #cccccc;">System.out.println("Hello World!"); </span></p><p><span style="background-color: #cccccc;">}</span></p><p><span style="background-color: #cccccc;">}</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>MyBeanClient.java</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">import java.util.Properties;</span></p><p><span style="background-color: #cccccc;">import javax.naming.InitialContext;</span></p><p><span style="background-color: #cccccc;">import javax.naming.NamingException;</span></p><p><span style="background-color: #cccccc;">public class MyBeanClient {</span></p><p><span style="background-color: #cccccc;">public static void main(String[] args) {</span></p><p><span style="background-color: #cccccc;">try {</span></p><p><span style="background-color: #cccccc;">Properties props = new Properties();</span></p><p><span style="background-color: #cccccc;">props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");</span></p><p><span style="background-color: #cccccc;">props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");</span></p><p><span style="background-color: #cccccc;">props.setProperty("java.naming.provider.url", "127.0.0.1:1099"); </span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">InitialContext ctx = new InitialContext(props); </span></p><p><span style="background-color: #cccccc;">MyBeanRemote bean = (MyBeanRemote) ctx.lookup("MyBean/remote");</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="background-color: #cccccc;">bean.doSomething();</span></p><p><span style="background-color: #cccccc;">} catch (NamingException e) {</span></p><p><span style="background-color: #cccccc;">e.printStackTrace();</span></p><p><span style="background-color: #cccccc;">} </span></p><p><span style="background-color: #cccccc;">}</span></p><p><span style="background-color: #cccccc;">}</span></p></div>
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