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created by <a href="http://community.jboss.org/people/sgreddy.vardhan">Govardhan Reddy</a> in <i>EJB 3.0</i> - <a href="http://community.jboss.org/message/543663#543663">View the full discussion</a>
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<div class="jive-rendered-content"><p>!) </p><p><span style="font-size: 10pt; color: #7f0055;"><p align="left"><strong>package</strong></p><span style="font-size: 10pt; color: #7f0055;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p><p align="left"><span style="font-size: 10pt;"><strong>com.ejb3.account;</strong></span><span style="font-size: 10pt;"><strong> </strong><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p></span><span style="font-size: 10pt; color: #7f0055;"><p align="left"><strong>import</strong></p><span style="font-size: 10pt; color: #7f0055;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p><p align="left"><span style="font-size: 10pt;"><strong>javax.ejb.Stateless;</strong></span><span style="font-size: 10pt;"><strong> </strong><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p></span><span style="font-size: 10pt; color: #646464;"><p align="left"><strong>@Stateless</strong></p><p align="left"><strong><span style="font-size: 10pt;">(name=</span><span style="font-size: 10pt; color: #2a00ff;">"AccountBean"</span><span style="font-size: 10pt;">,mappedName=</span><span style="font-size: 10pt; color: #2a00ff;">"AccountBean"</span><span style="font-size: 10pt;">)</span></strong><span style="font-size: 10pt; color: #7f0055;"><strong> </strong><p align="left"><strong>public</strong></p><span style="font-size: 10pt; color: #7f0055;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p><p align="left"><strong><span style="font-size: 10pt; color: #7f0055;">class</span><span style="font-size: 10pt;"> AccountBean </span><span style="font-size: 10pt; color: #7f0055;">implements</span><span style="font-size: 10pt;"> AccountRemote{</span></strong><span style="font-size: 10pt; color: #7f0055;"><strong> </strong><p align="left"><strong>public</strong></p><span style="font-size: 10pt; color: #7f0055;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p><p align="left"><strong><span style="font-size: 10pt; color: #7f0055;">void</span><span style="font-size: 10pt;"> deposit(</span><span style="font-size: 10pt; color: #7f0055;">int</span><span style="font-size: 10pt;"> accno,</span><span style="font-size: 10pt; color: #7f0055;">double</span><span style="font-size: 10pt;"> amt)</span></strong><span style="font-size: 10pt;"><strong> </strong><p align="left"><strong>{</strong></p><p align="left"><strong>System.</strong></p><p align="left"><em><strong><span style="font-size: 10pt; color: #0000c0;">out</span><span style="font-size: 10pt;">.println(</span><span style="font-size: 10pt; color: #2a00ff;">"Ok Deposited"</span><span style="font-size: 10pt;">);</span></strong><span style="font-size: 10pt;"><strong> </strong><p align="left"><strong>}</strong></p></span><span style="font-size: 10pt; color: #7f0055;"><p align="left"><strong>public</strong></p><span style="font-size: 10pt; color: #7f0055;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p><p align="left"><strong><span style="font-size: 10pt; color: #7f0055;">double</span><span style="font-size: 10pt;"> getBal(</span><span style="font-size: 10pt; color: #7f0055;">int</span><span style="font-size: 10pt;"> accno)</span></strong><span style="font-size: 10pt;"><strong> </strong><p align="left"><strong>{</strong></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p><p align="left"><strong><span style="font-size: 10pt; color: #7f0055;">return</span><span style="font-size: 10pt;"> 9999;</span></strong><span style="font-size: 10pt;"><strong> </strong><p align="left"><strong>}</strong></p><p align="left"><strong>}</strong></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"><strong>2)<span id="_marker"> </span></strong><span style=": ; color: #7f0055; font-size: 2; font-color: #7f0055; "><p align="left"><strong>package</strong></p></span></p><p align="left"><span style="font-size: 10pt;"><span style="color: #000000;"> com.ejb3.account;</span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></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"><span style=": ; color: #7f0055; font-size: 2; font-color: #7f0055; "><p align="left"><strong>import</strong></p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="font-size: 10pt;"><span style="color: #000000;"> javax.ejb.Remote;</span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><span style="font-size: 10pt; color: #646464;"><p align="left"><strong>@Remote</strong></p></span><span style=": ; color: #7f0055; font-size: 2; font-color: #7f0055; "><p align="left"><strong>public</strong></p></span><p align="left"><span style="font-size: 10pt; color: #000000;"> </span><span style="font-size: 10pt; color: #7f0055;"><strong>interface</strong></span><span style="font-size: 10pt;"><span style="color: #000000;"> AccountRemote {</span><span style="font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong><span style="font-size: 10pt; color: #7f0055;">public</span><span style="font-size: 10pt;"> </span><span style="font-size: 10pt; color: #7f0055;">double</span><span style="font-size: 10pt;"> getBal(</span><span style="font-size: 10pt; color: #7f0055;">int</span></strong><span style="font-size: 10pt;"><strong> accno); </strong><span style="font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong><span style="font-size: 10pt; color: #7f0055;">public</span><span style="font-size: 10pt;"> </span><span style="font-size: 10pt; color: #7f0055;">void</span><span style="font-size: 10pt;"> deposit(</span><span style="font-size: 10pt; color: #7f0055;">int</span><span style="font-size: 10pt;"> accno,</span><span style="font-size: 10pt; color: #7f0055;">double</span></strong><span style="font-size: 10pt;"><strong> amt);</strong></span></p><p><strong>}</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><strong> </strong> </p></p><p><strong>3)package com.ejb3.account;</strong></p><p><strong>import java.util.Properties;</strong></p><p><strong>import javax.naming.Context;<br/>import javax.naming.InitialContext;</strong></p><p><strong>public class AccountEjb3Jboss422Client {</strong></p><p><strong> /**<br/>  * @param args<br/>  */<br/> public static void main(String[] args) {<br/>  try{<br/>   Properties p=new Properties();<br/>   p.put("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");<br/>   p.setProperty("java.naming.provider.url","localhost:1099");<br/>   p.setProperty("java.naming.factory.url.pkgs","org.jboss.naming");<br/>   <br/>   Context ctx=new InitialContext(p);<br/>      <br/>   System.out.println("Initial Context created");</strong></p><p><strong>   Object o=ctx.lookup("AccountBean/remote");<br/>   System.out.println("lookup successful");<br/>   AccountRemote ar=(AccountRemote)o;<br/>   System.out.println("Calling EJB method . . .");<br/>   ar.deposit(88,10000);<br/>   double bal=ar.getBal(88);<br/>   System.out.println("Bal is: "+bal);<br/>   System.out.println("Output will be in Managed server console");<br/>   <br/>  }catch (Exception e) {<br/>   e.printStackTrace();<br/>  }<br/> }<br/>}<br/></strong></p><p><strong>error</strong></p><p><strong><span style="font-size: 10pt;"><p align="left">Initial Context created</p></span><span style="text-decoration: underline;"><span style=": ; color: #000080; font-size: 2; text-decoration: underline; font-color: #000080; "><p align="left">javax.naming.CommunicationException</p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">NamingContext.java:722</span><span style="font-size: 10pt; color: #ff0000;">)<span style="font-color: #ff0000; font-size: 2; "><p align="left">at org.jnp.interfaces.NamingContext.lookup(</p></span></span></p><p align="left"><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">NamingContext.java:587</span><span style="font-size: 10pt; color: #ff0000;">)<p align="left">at javax.naming.InitialContext.lookup(Unknown Source)</p><span style="font-color: #ff0000; font-size: 2; "><p align="left">at com.ejb3.account.AccountEjb3Jboss422Client.main(</p></span></span></p><p align="left"><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">AccountEjb3Jboss422Client.java:24</span><span style="font-size: 10pt; color: #ff0000;">)<span style="font-color: #ff0000; font-size: 2; "><p align="left">Caused by:</p></span></span></p><p align="left"><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">java.io.InvalidClassException</span><span style="font-size: 10pt; color: #ff0000;">: org.jboss.remoting.InvokerLocator; local class incompatible: stream classdesc serialVersionUID = -4977622166779282521, local class serialVersionUID = -2909329895029296248<p align="left">at java.io.ObjectStreamClass.initNonProxy(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readClassDesc(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readObject0(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.defaultReadFields(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readSerialData(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readObject0(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.defaultReadFields(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readSerialData(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readObject0(Unknown Source)</p><p align="left">at java.io.ObjectInputStream.readObject(Unknown Source)</p><p align="left">at java.rmi.MarshalledObject.get(Unknown Source)</p><span style="font-color: #ff0000; font-size: 2; "><p align="left">at org.jnp.interfaces.MarshalledValuePair.get(</p></span></span></p><p align="left"><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">MarshalledValuePair.java:72</span><span style="font-size: 10pt; color: #ff0000;">)<span style="font-color: #ff0000; font-size: 2; "><p align="left">at org.jnp.interfaces.NamingContext.lookup(</p></span></span></p><p align="left"><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">NamingContext.java:652</span><span style="font-size: 10pt; color: #ff0000;">)<p align="left">... 3 more</p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left">please help me</p></span></p></span><span style="font-size: 10pt; color: #ff0000;"> [Root exception is </span><span style="color: #000080; font-size: 10pt; text-decoration: underline; ">java.io.InvalidClassException</span><span style="font-size: 10pt; color: #ff0000;">: org.jboss.remoting.InvokerLocator; local class incompatible: stream classdesc serialVersionUID = -4977622166779282521, local class serialVersionUID = -2909329895029296248]<span style="font-color: #ff0000; font-size: 2; "><p align="left">at org.jnp.interfaces.NamingContext.lookup(</p></span></span></strong></p></span></p></span></p></span></span></em></p></span></p></span></span></p></span></span></p></span></p></span></span></p></span></span></p></div>
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