<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<body link="#355491" alink="#4262a1" vlink="#355491" style="background: #e2e2e2; margin: 0; padding: 20px;">
<div>
<table cellpadding="0" bgcolor="#FFFFFF" border="0" cellspacing="0" style="border: 1px solid #dadada; margin-bottom: 30px; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td>
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" style="border: solid 2px #ccc; background: #dadada; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td bgcolor="#000000" valign="middle" height="58px" style="border-bottom: 1px solid #ccc; padding: 20px; -moz-border-radius-topleft: 3px; -moz-border-radius-topright: 3px; -webkit-border-top-right-radius: 5px; -webkit-border-top-left-radius: 5px;">
<h1 style="color: #333333; font: bold 22px Arial, Helvetica, sans-serif; margin: 0; display: block !important;">
<!-- To have a header image/logo replace the name below with your img tag -->
<!-- Email clients will render the images when the message is read so any image -->
<!-- must be made available on a public server, so that all recipients can load the image. -->
<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
</td>
</tr>
<tr>
<td bgcolor="#FFFFFF" style="font: normal 12px Arial, Helvetica, sans-serif; color:#333333; padding: 20px; -moz-border-radius-bottomleft: 4px; -moz-border-radius-bottomright: 4px; -webkit-border-bottom-right-radius: 5px; -webkit-border-bottom-left-radius: 5px;"><h3 style="margin: 10px 0 5px; font-size: 17px; font-weight: normal;">
HelloWorldBean is not an interface
</h3>
<span style="margin-bottom: 10px;">
created by <a href="http://community.jboss.org/people/brolinuk">Henry Lee</a> in <i>Beginner's Corner</i> - <a href="http://community.jboss.org/message/564811#564811">View the full discussion</a>
</span>
<hr style="margin: 20px 0; border: none; background-color: #dadada; height: 1px;">
<div class="jive-rendered-content"><p>I am starting JBoss with the simplest code （an interface and its implementation as Session Bean), which was packed in an JAR file and copied to ..\server\default\deploy folder. However, I got the exceptions when started the JBoss server (jboss-4.2.3.GA). Any idea what could cause such exception? Thanks in advance.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>21:33:12,203 WARN  [ServiceController] Problem starting service jboss.j2ee:jar=HelloWorld.jar,name=HelloWorldBean,service=EJB3<br/>java.lang.IllegalArgumentException: com.hongliang.ejb3.impl.HelloWorldBean is not an interface<br/>    at java.lang.reflect.Proxy.getProxyClass(Unknown Source)<br/>    at org.jboss.ejb3.stateless.BaseStatelessProxyFactory.init(BaseStatelessProxyFactory.java:166)<br/>    at org.jboss.ejb3.stateless.StatelessRemoteProxyFactory.init(StatelessRemoteProxyFactory.java:113)<br/>    at org.jboss.ejb3.stateless.BaseStatelessProxyFactory.start(BaseStatelessProxyFactory.java:212)<br/>    at org.jboss.ejb3.stateless.StatelessRemoteProxyFactory.start(StatelessRemoteProxyFactory.java:120)<br/>    at org.jboss.ejb3.ProxyDeployer.start(ProxyDeployer.java:83)<br/>    at org.jboss.ejb3.SessionContainer.start(SessionContainer.java:157)<br/>    at org.jboss.ejb3.stateless.StatelessContainer.start(StatelessContainer.java:102)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:103)<br/>    at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)<br/>    at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)<br/>    at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)<br/>    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)<br/>    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)<br/>    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)<br/>    at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)<br/>    at $Proxy0.start(Unknown Source)<br/>    at org.jboss.system.ServiceController.start(ServiceController.java:417)<br/>    at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)<br/>    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)<br/>    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)<br/>    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)<br/>    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)<br/>    at $Proxy57.start(Unknown Source)<br/>    at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:120)<br/>    at org.jboss.ejb3.Ejb3Deployment.registerEJBContainer(Ejb3Deployment.java:301)<br/>    at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:362)<br/>    at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)<br/>    at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)<br/>    at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)<br/>    at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)<br/>    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)<br/>    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)<br/>    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)<br/>    at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)<br/>    at $Proxy0.start(Unknown Source)<br/>    at org.jboss.system.ServiceController.start(ServiceController.java:417)<br/>    at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)<br/>    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)<br/>    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)<br/>    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)<br/>    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)<br/>    at $Proxy33.start(Unknown Source)<br/>    at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:512)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)<br/>    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)<br/>    at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)<br/>    at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)<br/>    at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)<br/>    at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)<br/>    at org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)<br/>    at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)<br/>    at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)<br/>    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)<br/>    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)<br/>    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)<br/>    at $Proxy34.start(Unknown Source)<br/>    at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)<br/>    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)<br/>    at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)<br/>    at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br/>    at java.lang.reflect.Method.invoke(Unknown Source)<br/>    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)<br/>    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)<br/>    at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)<br/>    at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)<br/>    at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)<br/>    at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)<br/>    at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)<br/>    at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)<br/>    at $Proxy9.deploy(Unknown Source)<br/>    at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)<br/>    at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)<br/>    at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)<br/>    at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)<br/>    at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)<br/>21:33:12,203 INFO  [EJB3Deployer] Deployed: file:/C:/liang/jboss4.2/jboss-4.2.3.GA/server/default/deploy/HelloWorld.jar<br/>21:33:12,203 ERROR [URLDeploymentScanner] Incomplete Deployment listing:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>--- MBeans waiting for other MBeans ---<br/>ObjectName: jboss.j2ee:jar=HelloWorld.jar,name=HelloWorldBean,service=EJB3<br/>  State: FAILED<br/>  Reason: java.lang.IllegalArgumentException: com.hongliang.ejb3.impl.HelloWorldBean is not an interface</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---<br/>ObjectName: jboss.j2ee:jar=HelloWorld.jar,name=HelloWorldBean,service=EJB3<br/>  State: FAILED<br/>  Reason: java.lang.IllegalArgumentException: com.hongliang.ejb3.impl.HelloWorldBean is not an interface</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>***************************************************************************************</p><p>The following are the code</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>package com.hongliang.ejb3.impl;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.ejb.Remote;<br/>import javax.ejb.Stateless;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import com.hongliang.ejb3.HelloWorld;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Stateless<br/>@Remote(HelloWorldBean.class)<br/>public class HelloWorldBean implements HelloWorld {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    <br/>    public String sayHello(String name) {        <br/>        return name + ": stupid EJB";<br/>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p>_______________________________________________</p><p>package com.hongliang.ejb3;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public interface HelloWorld {<br/>    public String sayHello(String name);<br/>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>********************************************************************************************************</p></div>
<div style="background-color: #f4f4f4; padding: 10px; margin-top: 20px;">
<p style="margin: 0;">Reply to this message by <a href="http://community.jboss.org/message/564811#564811">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in Beginner's Corner at <a href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2075">Community</a></p>
</div></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>